Login

Register

Login

Register

FREE U.S. SHIPPING ON ORDERS $199+ | 24-Hour Rapid Delivery Available
Product Selection Filter Tool / Showing 1 - 100 of 109 results
Product Type
Parameter
  • The Calibration Adapter (PN# S857) is used to calibrate modbus sensors. It threads on to the back of the smart sensor and it connects to a computer via a USB interface. This product is to be used with only the modular version of our Smart Sensors, which include:
    1. S8000 Series pH and ORP Sensors
    2. CS8000 Series Conductivity Sensors
    The Calibration Adapter is not measurement specific. One of these can be used to calibrate all modular sensors.
  • The Calibration Box (PN# CALBOX - MB) is used to calibrate modbus sensors. The wires from the sensors connect to the terminal block on the front of the box. It connects to a computer via a USB interface. This product is to be used with only the integrated version of our Smart Sensors, which include:
    1. S272 pH & ORP sensors
    2. DO6400 Series sensors
    3. TCS3020 sensor
    4. FCL & CLD amperometric sensors
    The Calibration Box is not measurement specific. One of these can be used to calibrate all integrated sensors.
  • High Accuracy and Repeatability
    • Accuracy is 2% of reading with 1% repeatability*
    • Electro-polish finish provides excellent stability and consistency
    Multiple Cell Constants Cover Wide Range of Applications
    • 0.01/cm for ultra-pure/pure water
    • 0.1/cm for pure and drinking water
    • 1.0/cm for wastewater and process water
    Durable in High-Temperature and High-Pressure Environments
    • Built from 316 Stainless Steel and Teflon
    • Withstands up to 150° C (302° F) and 1379 KPA (200 PSIG)
    CA ResidentsProp 65 WARNING(S) *Accuracy and repeatability of the sensor depends on the accuracy of the calibrating electronics
  • Our FC75C Flow Cell Kit is an easy and economical means for mounting pH sensors for in-line applications.  Compatible with all 12mm electrodes, including S222CD Light-Duty Online Process pH Sensor. To only purchase the gland, please purchase the FC75P
  • Transparent Pixel
  • CX3100

    NOW Available!

    Our CX3100 Conductivity Controller is an excellent choice for high temperature, high pressure applications. Compatible with our CS675, CS676, and CS875 stainless steel boiler conductivity probes, the CX3100 is the only Sensorex controller with automatic temperature compensation up to 200°C. The CX3100 replaces the Sensorex CX3000, and features an updated user interface with user friendly full text and graphical display.
    • Monitors conductivity, resistivity, TDS, or salinity
    • 1/2 DIN Transmitter/Controller with full text and graphical display
    • Ideal for use in high temperature applications (with stainless steel conductivity probes)
    • Automatic temperature compensation up to 200°C (PT1000 RTD)
  • TX3100

    NOW Available!

    Our TX3100 is an intelligent pH and ORP controller/transmitter for reading pH and ORP sensors and programmable process control. This controller replaces the TX3000 1/2 DIN pH/ORP controller and features an updated user interface with user friendly full text and graphical display. This makes operation, calibration, and maintenance easier for operators in treatment plants. The TX3100 also features a solution ground input for accurate readings in applications with ground loop issues.
    • NEW graphical display shows sensor data and aids in the calibration process
    • 2 programmable relays (Hi/Lo, Hi/Hi, or Lo/Lo)
    • Solution ground input eliminates measurement errors caused by reference ground potentials
    • Compatible with all Sensorex sensors with tinned leads and PT1000 RTD temp comp
  • Ideal for Laboratory or Light Industrial Process Applications
    • Submersible in tank or mounted inline
    • Made of rugged epoxy body
    Accurate Measurements
    • Select from three cell constants based on your measurement range
    • Use temperature compensation for best performance
    Compatible with Most Portable & Benchtop Meters CA ResidentsProp 65 WARNING(S) *Accuracy and repeatability of the sensor depends on the accuracy of the calibrating electronics
  • General-Purpose Sensor for Use in a Variety of Applications
    • Cooling Towers
    • Demin Influent
    Robust Single-Body Design
    • 1/2” NPT Stainless Steel
    • Hexagonal body shape for ease of installation
  • Ideal for Sanitary Installation
    • 1.5” and 2” tri-clamp options
    • Made from 316 Stainless Steel
    Accurate Measurements
    • Select from three cell constants based on your measurement range
    • Use temperature compensation for best performance
    Designed to Withstand CIP and Steam Sterilization Process
  • FC800
  • Resistant to Corrosion, Coating, and Fouling
    • Noryl body provides wide solvent tolerance and is stable up to 105° C
    • Robust single-body design
    Wide Measurement Range
    • Measures conductivity from 0 - 2,000,000 uS
  • 1/8 DIN EC transmitter
    The CX10 is a convenient and cost effective solution for monitoring conductivity or resistivity of water. Save space in your panel with the small footprint 1/8 DIN case. This EC transmitter displays conductivity or resistivity readings on an easy to read LCD screen. The 4-20mA signal output can be conveniently integrated into a range of process control systems.
    • Easy to install 1/8 DIN Case
    • Isolated, reversible 4-20mA output
    • Compatible with sensor utilizing spade lug or tinned lead connectors
    • Clear LCD displays conductivity, resistivity, or temperature
    • 100-240 VAC power supply
    Note: This EC transmitter is only compatible with sensors that have spade lug or tinned lead connectors and 10k NTC temperature compensation.
  • Our CX105 conductivity transmitter is an isolated output 4-20mA industrial transmitter for reading contacting conductivity sensors. The CX105 transmitter also measures Resistivity and TDS. Easily power the unit with available two-wire power supply loop. This transmitter is ideal for connecting to a PLC for advanced control systems. The CX105 has versatile mounting options for wall or panel mount. With a dual display LCD, monitoring both the measuring value and the temperature is simple.
    • Dual display shows the measuring value and temperature
    • Compatible with a wide variety of contacting conductivity, resistivity, and TDS sensors
    • One year limited warranty
    • CE certified - compliant with European Community Standards
  • 1/8 DIN EC Controller
    The CX20 conductivity controller is a convenient and cost effective solution for monitoring and maintaining conductivity. Save space in your panel with the small footprint 1/8 DIN case. Use the two sets of relay outputs to program process control, including management of alarms and chemical dosage systems.
    • Easy to install 1/8 DIN Case
    • Two sets of programmable relays for conductivity or resistivity
    • Clear LCD displays conductivity, resistivity, or temperature
    • 100-240 VAC power supply
    Note: Controller is only compatible with sensors that have spade lug or tinned lead connectors and 10k NTC temperature compensation.
  • dissolved oxygen sensor
    Our DO1200 galvanic dissolved oxygen sensors measure the oxygen content of water using an electrochemical measurement principle. Built in an economical but durable 12mm epoxy body, these sensors are suitable for portable or benchtop use. The DO1200 can also be installed inline for continuous monitoring applications by upgrading to a PTFE membrane cap. The sensor is compatible with our FC75P 3/4 inch in-line fitting for mounting into 3/4 inch FNPT threaded tees.
    • Galvanic (electrochemical) measurement principle
    • Replaceable membrane cap and fill solution
    • 12mm durable epoxy body
    • For benchtop, portable, or inline use
    Request a Quote
  • blind pH transmitter

    Now Available with optional MODBUS/RS485 Interface

    The EM802-EC is our most cost-effective solution for connecting our S8000 series Contacting Conductivity sensors to a PLC or SCADA system. This small electronic module functions as a blind transmitter with a 4-20mA or MODBUS/RS485 output. No additional instrumentation is required to condition the sensor signal to be read by your PLC or SCADA. It can also be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card. Easily connects to our CS8300TC Modular Contacting Conductivity Sensor Package to form a complete monitoring solution.
    • Blind 4-20mA or MODBUS/RS485 transmitter for connecting conductivity sensors to PLC or SCADA
    • Small form factor saves valuable panel space
    • Input Voltage Options:
      • 12V DC - MODBUS only
      • 24V DC - 4-20mA & MODBUS
    • Compatible with CS8300 conductivity sensor
    • Compatible with PT1000 RTD temperature compensation
  • blind pH transmitter

    Now Available with optional MODBUS/RS485 Interface

    The EM802-ORP is our most cost-effective solution for connecting our S8000 series ORP sensors to a PLC or SCADA system. This small electronic module functions as a blind ORP transmitter with a 4-20mA or MODBUS/RS485 output. No additional instrumentation is required to condition the sensor signal to be read by your PLC or SCADA. It can also be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card. Easily connects to our S8200 Modular ORP Sensor Package to form a complete ORP monitoring solution.
    • Blind 4-20mA or MODBUS/RS485 transmitter for connecting ORP sensors to PLC or SCADA
    • Input Voltage Options:
      • 12V DC - MODBUS only
      • 24V DC - 4-20mA & MODBUS
    • Small form factor saves valuable panel space
    • Compatible with S8100 submersion ORP sensor
    • Compatible with PT1000 RTD temperature compensation
  • blind pH transmitter

    Now Available with optional MODBUS/RS485 Interface

    The EM803-pH is our most cost-effective solution for connecting our S8000 series pH sensors to a PLC or SCADA system. This small electronic module functions as a blind pH transmitter with a 4-20mA or MODBUS/RS485 output. No additional instrumentation is required to condition the sensor signal to be read by your PLC or SCADA. It can also be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card. Easily connects to our S8300 Modular pH Sensor Package to form a complete pH monitoring solution.
    • Blind 4-20mA or MODBUS/RS485 transmitter for connecting pH sensors to PLC or SCADA
    • Small form factor saves valuable panel space
    • Input Voltage Options:
      • 12V DC - MODBUS only
      • 24V DC - 4-20mA & MODBUS
    • Compatible with S8100 submersion pH sensor or S8300 inline pH sensor
    • Compatible with PT1000 RTD temperature compensation
  • CPVC Flow Cell

    The FC875/T Threaded 3/4″ CPVC Flow Cell is used for in-line installation of the S8000CD Self-Cleaning Industrial pH Sensor or S8000CD-ORP Self-Cleaning Industrial ORP Sensor.

    The FC875/T is part of a complete S8000 package and can be purchased separately, or it is already included in our S8000 Kits listed below:
  • 4-20mA display
    The LPM100 is a durable, loop-powered 4-20mA display for use in process monitoring applications. Monitor various parameters, including UV transmittance, free chlorine, dissolved oxygen, and more. This large display meter can be mounted in various configurations - including pipe mounting with our pipe mount kit. Simple installation and operation make it an ideal solution for process read out monitoring.
    • Compatible with Sensorex 4-20mA output sensors
    • Durable for harsh environmental conditions
    • Simple set up and operation
    • User-friendly interface
    • One year limited warranty
  • Pipe mount kit
    The LPMA-002 is an accessory kit that allows pipe-mounting of the LPM100 loop-powered display meter. The LPM100 is a durable, loop-powered process meter for use in demanding applications. This rugged, large display meter can be mounted in various configurations and endure harsh environmental conditions. Simple installation and operation make it an ideal solution for process read out monitoring.
    • Durable for harsh environmental conditions
    • Simple set up and operation
    • User-friendly interface
    • Compatible with Sensorex 4-20mA output sensors
    • One year limited warranty
  • pH Detector
    The pH Detectors are designed for use with a variety of instrumental techniques such as FIA, HPLC and IEF and are also used to continuously monitor the pH of low volume flows in bench scale chemical systems. The pH detector system is specially designed to achieve ultra fast response times. A flat surface pH electrode (S450CD) located at the top of the flow cavity allows for very low internal volumes. The resulting rectangular cross-section flow path has no protruding parts which could interfere with a clean sweeping flow.
    • pH Detector system for HPLC, FIA, and IEF applications
    • Perfect for low volume flow measurements
    • Ultra fast response time
    • Flow cell and inlet/outlet fittings included
  • cheap glass probe
    Whether you are a student measuring pH in a lab or a business owner monitoring plant or crop health, you need a pH electrode that will consistently deliver accurate measurements. If you deal with a wide variety of chemicals or any aggressive substances, a glass probe like our pH1400 (formerly SG201C) is a safe choice due to the chemically inert properties of glass. This basic, single junction electrode has a refillable reference cell, allowing users to maintain measurement precision throughout the sensor lifetime.
    • Accurate measurements across full pH scale (0-14)
    • Glass body withstands harsh chemicals
    • Refillable reference for extended working lifetime
    • Use with any meter accepting BNC
    • One year limited warranty
  • double junction pH probe
    Applications such as environmental and wastewater sampling involve some uncertainty about what samples may contain. When dealing with unknown or unpredictable sample types, you need a pH probe you can trust to deliver accurate measurements regardless of the contaminants you encounter. The pH2000 (formerly S200CD) has a double junction reference design to prevent reference fouling by heavy metals and other sample contaminants. When you travel to remote sites to collect data, it is especially important that obtaining the measurements you need is hassle free. The pH2000 features an Ultem® body and a booted meter connection for durability you can trust in the field.
    • Durable Ultem® body
    • Booted BNC protects meter connection
    • Low maintenance sealed gel reference design
    • Double junction prevents reference cell contamination
    • 1 year limited warranty

    Click here to download specification sheet.

  • Flat Tip pH Electrode
    Agar plates, skin, and electrophoresis gels are all surfaces that may be difficult to measure with a typical glass bulb electrode due to concerns about bulb breakage. To facilitate these and other surface measurements, we created the pH2100 flat tip pH electrode. It has a rugged flat measurement surface, which breaks less easily when it comes in contact with hard materials. This makes it a great choice for measuring slurries, sludges, and viscous samples as well as those containing suspended solids.
    • Flat measurement tip for surface measurements and slurries
    • Double junction electrode design prevents reference contamination
    • Durable Ultem® body
    • Booted BNC protects meter connection
    • One year limited warranty
  • combined glass electrode
    Environmental, wastewater, and other sampling applications may expose electrodes to unknown contaminants. Over time, exposure to contaminants such as heavy metals and reactive chemicals, will take a toll on a sensor's functional components.  The best sensors for these types of applications are built to safely handle contaminants to maximize working lifetime. Our pH2400 has a double junction reference design to prevent fouling by sample contaminants that interact with Silver (Ag). The refillable reference junction allows users to replace the liquid fill solution as it becomes depleted or contaminated, instead of replacing the whole sensor.
    • Accurate measurements across full pH scale (0-14)
    • Glass electrode body provides maximum chemical compatability
    • Double junction design prevents reference contamination
    • Refillable reference junction allows sensor maintenance, saving replacement costs
    • BNC boot protects meter connection
    • One year limited warranty
  • gel filled flat electrode
    Surfaces like paper, leather, electrophoresis gels and agar plates may be difficult to measure with traditional pH glass bulbs due to concerns about breakage. A flat electrode like our pH2500, is ideally suited for these types of pH measurements as well as measurements of suspended sludges and slurries. In addition to its specially designed measurement surface, the pH2500 features double junction construction, which prevents contamination and allows testing of samples containing heavy metals or proteins.
    • Flat electrode measurement surface
    • Double junction reference protection
    • Reinforced meter connection
    • Low maintenance sealed gel reference design
    • Compatible with any meter accepting BNC
  • light duty pH probe
    The pH6000 is a light duty option for continuous monitoring of surface water and ground water, including environmental and industrial source water monitoring. The durable Ultem® body permits use in the field, while conferring chemical compatibility. Double junction reference protection allows use in environments that contain reference fouling contaminants, including heavy metals. Fully integrated cable comes in a 10 foot (3 meter) standard length, with custom cables available by request.
    • Durable Ultem® body
    • Booted BNC protects meter connection
    • Low maintenance sealed gel reference design
    • Double junction prevents reference cell contamination
    • 1 year limited warranty
  • pH sensor refill solution
    Refillable glass pH electrodes contain liquid electrolyte solution, which serves to close the electrical circuit in a pH electrode. The electrolyte solution must have electrical contact with the solution being measured. Contact is made via a semipermeable junction, which permits a consistent outflow of liquid electrolyte.  Over time, electrolyte is depleted and should be replaced.
    • 3.5 M liquid KCl for Sensorex model pH3000
    • 3.5 M liquid KCl/AgCl for Sensorex model pH1400
  • Submersible pH Electrode
    This submersible pH electrode is ideal for tanks, flumes and sewer lines. The self-cleaning, flat-surface design makes the S651CD resistant to coating, increasing time between maintenance cycles. Based on our popular S650CD, the S651CD features protective feet to guard the pH glass against breakage. Double junction reference protection extends the lifetime of the sensor. Should a replacement sensor be required, the electrode is equipped with quick disconnect BNC connections to minimize downtime due to electrode maintenance. Designed for use with our S653 Cable Assembly for a complete Submersible Flat-Surface, Self-Cleaning pH measurement solution.
    • Flat surface design resists coating
    • Double junction reference protection extends sensor lifetime
    • Use with our S653 Cable Assembly for quick and easy maintenance
    • Reliable CPVC construction
    • One year limited warranty
  • Submersible pH Electrode
    Our S651CD-HF submersible pH electrode is ideal for acidic environments that utilize hydrofluoric acid (HF). The self-cleaning, flat-surface design makes the this electrode resistant to coating, increasing time between maintenance cycles. Protective feet guard the pH glass against breakage, and double junction reference protection extends the lifetime of the sensor. Should a replacement sensor be required, the S651CD-HF is equipped with quick disconnect BNC connections to minimize downtime due to electrode maintenance. Designed for use with our S653 Cable Assembly for the S651CD for a complete Submersible Flat-Surface, Self-Cleaning pH measurement solution, even in acidic HF conditions.
    • HF resistant pH glass for extended lifetime in harsh conditions
    • Flat surface design resists coating
    • Double junction reference protection extends sensor lifetime
    • Use with our S653 Cable Assembly for quick and easy maintenance
    • Reliable CPVC construction
    • One year limited warranty
  • submersible orp electrode
    This submersible ORP electrode is ideal for tanks, flumes and sewer lines. The self-cleaning, flat-surface design makes the S651CD-ORP resistant to coating, increasing time between maintenance cycles. Protective feet guard sensing surface from breakage, and double junction reference protection extends the lifetime of the sensor. Should a replacement sensor be required, the S651CD-ORP is equipped with quick disconnect BNC connections to minimize downtime due to electrode maintenance. Designed for use with our S653 Cable Assembly for the S651CD for a complete Submersible Flat-Surface, Self-Cleaning ORP measurement solution.
    • Flat surface design resists coating
    • Double junction reference protection extends sensor lifetime
    • Use with our S653 Cable Assembly for quick and easy maintenance
    • Reliable CPVC construction
    • One year limited warranty
  • S653 Cable Assembly
    With threading for submersion mounting, the S653 Cable Assembly is the perfect complement to our S651CD Submersible Electrode series. This cable assembly is designed to submerge the electrode in tanks, flumes and sewer lines. The cost-effective CPVC construction is well suited for most water and wastewater applications. Pairing the S653 Cable Assembly with an S651CD series Electrodes allows for quick electrode changes, drastically reducing downtime due to maintenance.
    • Use with one of our S651CD series Electrodes for quick and easy maintenance
    • Threading design for fast and simple installation
    • Durable CPVC design is suitable for most applications
    • One year limited warranty
  • benchtop pH meter
    The new SensoLab Series Benchtop pH/ORP Meter is the perfect solution for a range of applications from instructional chemistry laboratories to quality control testing. Our waterproof pH and ORP meter helpfully prompts you through the calibration and measurement procedures, and includes the optional AUTOLOCK feature to ensure repeatable and reliable pH and mV measurements. This versatile meter can be powered in two ways, either with 6 AAA batteries to save your valuable bench space or with an AC power cable. Use with any of our Laboratory pH Eletrodes or ORP Sensors. Or you can check out our SensoLab pH Meter Kit for a complete pH measuring solution.
  • pH measurement kit
    The new SensoLab Series benchtop pH Meter package is the perfect solution for a range of applications from instructional chemistry laboratories to quality control testing. Our ready-to-use kit contains everything you need to get an experiment started: Our waterproof pH and ORP meter helpfully prompts you through the calibration and measurement procedures, and our color-coded 7.00, 4.01, and 10.01 pH buffer solutions ensure accurate calibration every time. The meter also includes the optional AUTOLOCK feature to ensure repeatable and reliable pH and mV measurements. This versatile meter can be powered in two ways, either with 6 AAA batteries to save your valuable bench space or with an AC power cable.
  • TDS measurement kit
    The new SensoLab Series TDS Measurement Kit includes everything you need to start measuring conductivity or total dissolved solids for research, plant cultivation, hydroponics, aquaculture, and other applications. Includes our CM1000 benchtop conductivity meter with a fully compatible TDS sensor and built in temperature probe. Intelligent auto ranging selects the best measurement scale based on each sample, eliminating the guesswork.
    • Complete kit ready for TDS monitoring
    • Auto ranging for ease of use
    • Optional electrode stand
  • tds meter
    The new SensoLab Series Benchtop Total Dissolved Solids Meter is an easy to use benchtop meter for analyzing conductivity or total dissolved solids in laboratory samples. Monitor data from conductivity sensors in research, hydroponics and greenhouses, aquariums and aquaculture, and more. Ready to use right away, our TDS meter quickly prompts users through the calibration process. Suitable for measurement in a wide range of sample types, the SensoLab Total Dissovled Solids Meter is compatible with sensors across 4 cell constants. With intelligent auto-ranging, the meter automatically selects the best units of conductivity based on the sample type being measured. No experience required.
    • Compatible with Sensorex CS150 conductivity sensors
    • Auto ranging for ease of use
    • Suitable for a range of sample types, cell constants
  • glass pH electrode
    Applications such as environmental and wastewater sampling involve some uncertainty about what samples may contain. When dealing with unknown or unpredictable sample types, you need an electrode you can trust to deliver accurate measurements regardless of the contaminants you encounter. The SG2000CD has a double junction reference design to prevent reference fouling by heavy metals and other sample contaminants. With a chemically inert glass body, this electrode can be safely used in the widest range of chemical environments.
    • Accurate measurements across full pH scale (0-14)
    • Maximum chemical compatibility
    • Low maintenance sealed gel reference
    • Compatible with any meter accepting BNC
    • Booted BNC protects meter connection
    • One year limited warranty
  • 1/8 DIN ORP transmitter
    The TX10 pH and ORP transmitter is a convenient and cost effective solution for pH and ORP monitoring. This transmitter allows you to save space in your panel with the small footprint of its 1/8 DIN case. The isolated, reversible 4-20mA output of the transmitter provides versatility for a range of process control possibilities.
    • Easy to install 1/8 DIN Case
    • 4-20mA current output
    • Compatible with sensors that utilize spade lug connectors
    • Clear LCD displays pH or ORP and temperature
    • 100-240 VAC power supply
    Note: The TX10 pH and ORP transmitter is only compatible with sensors that have spade lug connectors.
  • automatic pH controller

    TX20 pH and ORP Controller

    $380.92
    Our TX20 Automatic pH Controller is a convenient and cost effective solution for monitoring and maintaining both pH and ORP. This controller allows you to save space in your panel with its small footprint 1/8 DIN case. You can also use the two on/off relay outputs to program process control, including management of alarms and chemical dosage systems.
    • Easy to install 1/8 DIN Case
    • Two on/off controls (relay outputs)
    • Compatible with sensors that utilize spade lug connectors
    • Clear LCD displays pH or ORP and temperature
    • 100-240 VAC power supply
    Note: The TX20 Automatic pH Controller is only compatible with sensors that have spade lug connectors.
  • replacement pH sensor cartridge
    Our S8000 series of pH deliver the most reliable online pH monitoring in a unique, modular package that minimizes total cost of ownership. These sensor cartridges can be changed in a few seconds with no tools or re-wiring required. Extended sensor lifetime with ERP Reference System.
    • Reliable performance in demanding applications
    • Lightning fast sensor changes with no tools required
    • Extended sensor lifetime
    • All mounting hardware is reuseable. Only replace the quick-change sensor cartridge
    • One year limited warranty
  • inline pH probe

    Now Available with optional MODBUS/RS485 Interface

    In heavily contaminated wastewater or chemical processing applications, an inline pH probe typically wears out fast. Constantly replacing an inline pH probe can feel like a waste of time and money. We created our modular, quick disconnect S8000 sensor packages for these types of heavy duty industrial applications. The sensor can be replaced in a few seconds with no tools or re-wiring required by swapping the S8000CD Quick Change Replacement Cartridge. Reuse the cable assembly and other mounting hardware for a low cost of ownership.
    • Recommended for challenging water and wastewater applications
    • Uses direct 4-20mA analog or MODBUS/RS485 digital output signal to integrate with a PLC or other control system
    • Fast sensor changes with no tools required
    • Reusable cable and mounting hardware
    • Low total cost of ownership
    • One year limited warranty
    Optional Accessories:
  • ph buffer

    pH Buffer Solutions

    $8.83$23.75
    Sensorex pH buffer solutions are used for calibration of pH sensors. pH buffer kit contains 3 color coded pH buffer values of (red) 4.01. (Yellow) 7.00 and (blue) 10.00. Order as a 3-pack or individual bottles.
  • pH Electrode Storage Solution
    Extend the life of your pH and ORP sensors by using the Sensorex pH electrode storage solution. When the sensor is not in use, place the sensor glass measurement area into the storage solution. The pH electrode storage solutions are supplied in pints (473 ml).
  • differential pH electrode
    Our SD7000 series of differential pH sensor offers unsurpassed pH measurement accuracy by minimizing reference junction fouling and eliminating ground loops. These units deliver greater reliability and less required maintenance than a conventional combination pH sensor. Extended sensor lifetime can be achieved by replacing the sensor reference (salt bridge). Reliably measures pH in environments with rapid temperature changes with built-in quick response automatic temperature compensation (ATC).
    • Reliable measurement performance with true differential pH measurement technology using solution ground
    • Direct-fit compatibility for several popular Hach® & Water Analytics® models
    • Perfect for pressurized applications with sealed, no maintenance reference design
    • Built for difficult applications & constructed of chemically-resistant Ryton Polyphenylene Sulfide (PPS)
    • Two year limited warranty
     
  • differential pH probe
    Applications such as pulp and paper or dye manufacturing and industrial wastewater treatment may expose pH probes to harsh conditions and chemicals. A differential pH probe utilizes a special measurement technique, which extends the working lifetime of the sensor in challenging applications. Replacing the sensor reference (salt bridge) and buffered electrolyte solution can extend working lifetime, which saves timely, costly replacements. Our SD7420CD features differential sensor technology with a direct 4-20mA output, so it can be integrated into control systems without the use of a transmitter or controller.
    • Utilizes differential measurement technology for extended sensor lifetime
    • No transmitter or controller required
    • Easy and infrequent maintenance
    • Constructed of chemically-resistant Ryton® Polyphenylene Sulfide (PPS)
    • Built-in automatic temperature compensation
    • Two Year limited Warranty
  • differential ORP sensors
    When an ORP sensor is constantly measuring a wastewater treatment process, it will be exposed to chemicals, suspended solids, and other contaminants. These contaminants can cause fouling of the ORP sensor reference, leading to sensor failure. Differential ORP sensors utilize three electrodes instead of the conventional two. This special design allows the sensor reference (salt bridge) and buffered electrolyte solution to be replaced, which extends working lifetime. Our SD7420CD features differential sensor technology with a direct 4-20mA output, so it can be integrated into control systems without the use of a transmitter or controller.
    • True differential measurement technology using solution ground
    • Virtually zero ground loop measurement error
    • No transmitter or controller required
    • Constructed of durable Ryton® PPS
    • Two year limited warranty
  • differential pH
    Continuous online pH monitoring in wastewater and coating industrial applications leads to contamination and eventually requires sensors to be replaced. A differential pH sensor utilizes a measurement technique designed to extend the working lifetime of sensors in challenging applications. Replacing the sensor reference (salt bridge) and buffered electrolyte solution can prevent sensor replacements, saving time and money. Our SD7500 Series features a combination sensor output; these differential pH sensors can be used with any conventional pH/ORP transmitter.
    • Differential measurement technology with solution ground
    • Buffered electrolyte reference resists fouling
    • Compatible with any conventional pH/ORP transmitter
    • Easy and infrequent maintenance
    • Automatic temperature compensation
    • Two Year limited Warranty
  • differential ORP probe
    Continuous online ORP monitoring in applications like metal finishing and chrome waste treatment wears down ORP sensors, leading to reference contamination. A differential ORP probe utilizes three electrodes instead of two, which extends the sensor's working lifetime in challenging applications. Replacing the sensor reference (salt bridge) and buffered electrolyte solution can prevent sensor replacements, saving time and money. The SD7500CD-ORP is a self-powered differential ORP probe, allowing use with any conventional ORP transmitter.
    • Differential measurement technology with solution ground
    • Buffered electrolyte reference resists fouling
    • Compatible with any conventional pH/ORP transmitter
    • Replaceable double junction salt bridge
    • Refillable reference solution
    • Two Year limited Warranty
  • portable uv transmittance
    Our UVT-LED-H Handheld UV Transmittance Monitor is ergonomic, lightweight, and simple to use. Obtain incredibly accurate UV Transmittance data on water samples with easy one-button operation.  The UVT-LED-H features high performance LED technology for up to 5x longer lifetime, easy to read backlit LCD to instantly display measurements, and integrated rechargeable Nickel Cadmium battery, all in one of the most compact packages of any UV Transmittance sensor available.
    • Stable measurements driven by high-performance UV-C LED technology
    • Ergonomic, lightweight and portable
    • No warm up time, no disposable cuvettes, and no replacement lamps
    • Take up to 350 measurements on a single battery charge
    • Quick and easy calibration with DI water
  • differential ORP sensor
    Our SD7000 differential ORP sensor offers unsurpassed ORP measurement accuracy by minimizing reference junction fouling and eliminating ground loops. The SD7000 series delivers greater reliability and less required maintenance than a conventional combination ORP sensor. Extended sensor lifetime can be achieved by replacing the sensor reference (salt bridge). Reliably measures ORP in environments with rapid temperature changes with built-in quick response automatic temperature compensation (ATC).
    • Reliable measurement performance: True differential ORP measurement technology using solution ground
    • Direct-fit Compatibility: Replacement sensor for several popular Hach® & Water Analytics® models
    • Perfect for pressurized applications: Sealed, no maintenance reference design
    • Built for difficult applications: Constructed of chemically-resistant Ryton Polyphenylene Sulfide (PPS)
    • Two year limited warranty: We stand behind all our products with the Sensorex Guarantee
    * Hach is a registered trademark of Danaher. No affiliation, endorsement or sponsorship is stated or implied.
  • low cost pH Sensor
    Whether you need to measure pH in your swimming pool, aquarium, or hydroponics garden, you need a probe that will deliver accurate measurements day in and day out. Our pH1000 polycarbonate pH sensor provides reliable, stable readings in a range of environments, from greenhouses to science classrooms. This sensor stands up to the usual wear and tear with its durable polycarbonate body and built-in protection for the pH glass measuring surface. Compatible with all pH meters accepting a BNC connector.
    • Very fast response time
    • No maintenance required
    • Durable construction
    • Instantly ready for use
    • One year limited warranty
     
  • pool pH sensor
    Maintaining proper pH in a swimming pool is critical to chlorine sanitizing activity. Our pH5000 swimming pool pH sensor is reliable and easy to use - perfect for most swimming pool pH testing applications. The durable polycarbonate body stands up to the usual wear and tear, with built in protection for the measuring pH glass. No maintenance is required to keep the sensor working, with a convenient sealed gel reference design.
    • Very fast response time
    • No maintenance required
    • Durable construction
    • Instantly ready for use
    • One year limited warranty
     
  • conductivity calibration solution
    Our TDS / Conductivity Calibration Standards are prepared to NIST (National Institute of Standards and Technology) primary solutions standards. Both Mixed Salts and Single Salt solutions are available. A NIST certificate is also available for a nominal charge. Solutions are supplied in quart bottles (946 ml) and are ready for immediate use. Both the TDS and the conductivity values are listed on the label. Shelf life is guaranteed for a year, and each solution is supplied with a MSDS sheet.
  • ph simulator
    pH and ORP measurement loops can be difficult to troubleshoot unless you have the right tools. Our CAL-C110 simulator mimics the signal of a perfect pH or ORP sensor. No need to throw away good sensors when the issue may be the interconnection cables or pH/ORP instrument. The simulator costs less than most pH or ORP sensors. It can easily pay for itself the very first time you consider disposing of a perfectly good sensor. Allows the user to identify the sensor, cable, meter, preamplifier, or controller as the cause of the problem.
    • An essential tool for troubleshooting pH and ORP systems
    • Compatible with most pH and ORP systems using BNC connectors
    • Simulate high impedance loads
    • Instantly ready for use and includes 9V battery
    • One year limited warranty
     
  • soil pH sensor
    Looking to measure the pH of soil, meat, or cheese? A standard pH sensor with bulb shaped glass won't effectively pierce the surface of these semi-solids; the pH glass may even crack. That's why we've created the pH2200 spear tip pH sensor, specially designed to penetrate semi-solid surfaces for effective pH measurement. The sensor is assembled with a bio-friendly Ultem® body, making it safe for use in food and soil. Use this durable pH sensor at home or in the field with any pH meter accepting a BNC connector.
    • Instantly ready for use
    • Rugged spear tip measurement surface for piercing semi-solids
    • Bio-friendly Ultem® body for safe measurements in food and soil
    • Long-lasting with built-in protection against protein contamination
    • No refilling or maintenance required
  • Submersion ORP Sensor

    Now Available with optional MODBUS/RS485 Interface

    Our S8000 series of ORP sensors deliver the most reliable online ORP monitoring in a unique, modular package that minimizes total cost of ownership. Customize to exactly what you need for your application with optional electronic amplifier, 4-20 mA or MODBUS/RS485 module, and custom automatic temperature compensation configurations. Sensors can be changed in a few seconds with no tools or re-wiring required by swapping the S8000CD-ORP Quick Change Replacement Cartridge.
    • Reliable performance in demanding applications
    • Lightning fast sensor changes
    • Perfect for pressurized applications
    • Low total cost of ownership
    • One year limited warranty
    Optional Accessories:
  • 4-20mA pH Transmitter
    Our TX100 is a fully-featured pH/ORP transmitter for use with pH and ORP sensors. The large display shows pH/ORP value simultaneously with temperature. Versatile mounting options for wall, panel, DIN rail or pipe mount.
    • Reliable pH/ORP monitoring
    • Simple sensor calibration
    • Automatic sensor maintenance alerts
    • Compatible with a wide variety of Sensorex pH/ORP sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads.
  • TX105
    Our TX105 is a fully-featured pH/ORP transmitter for use with pH and ORP sensors. The large display shows pH/ORP value simultaneously with temperature. Versatile mounting options for panel, DIN rail or pipe mount.
    • Reliable pH/ORP monitoring
    • Simple sensor calibration
    • Automatic sensor maintenance alerts
    • Compatible with a wide variety of Sensorex pH/ORP sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads.
  • ORP Calibration Solution with Quinhydrone
    The B125 ORP Calibration kit can be used for a simple calibration of both pH and ORP sensors. Use this kit for pH calibration, then convert the pH buffers into stable ORP buffers by saturating with quinhydrone. The B125 ORP calibration kit is a complete, ready-to-use package and can be used for up to 30 calibrations.
    • Simple calibration of pH and ORP simultaneously
    • Fast response time
    • Mix and prepare the calibration buffers in seconds
    • Instantly ready for use and ships with plastic beakers and stirring sticks
    • One year shelf life guaranteed
  • replacement probe for BNC meter
    When accuracy and repeatability are critical, such as in pharmaceutical or drinking water applications, the ideal electrode will quickly deliver stable measurements. The pH3000 is specially designed to respond quickly and accurately to rapid temperature changes. The high sensitivity internals also make these sensors the best choice for low ionic samples. The double junction reference design prevents contamination, allowing pH testing in samples containing heavy metals, proteins and enzymes, or TRIS buffer.
    • High sensitivity internals for temperature responsive measurements
    • Refillable reference for maximum measurement repeatability
    • Double junction design prevents reference contamination
    • Durable Ultem® body
    • Reinforced meter and cable connections
    • Removable pH glass guard
  • reliable combination pH electrode
    In laboratory environments such as medical, biological, and materials science research groups, samples and test conditions are constantly changing, but accuracy is always critical. The pH3400 is a highly versatile combination pH electrode, specially designed to respond quickly and accurately to rapid temperature changes. The high sensitivity internals allow testing of low ionic samples. Safely measure samples containing heavy metals, TRIS buffer, or proteins thanks to the double junction reference design, which prevents fouling. Even test highly reactive chemicals: with a glass body, the pH3400 is inert to a wide range of chemical reactions.
    • High accuracy, temperature responsive measurements (pH 0-14)
    • Chemically inert glass body
    • Double junction reference prevents contamination
    • Refillable pump junction helps users easily extend sensor lifetime
    • Reinforced meter connection allows use in wet and corrosive environments
       
  • sealed pH probe
    In research studies or development applications where heat, moisture, or chemical contaminants may damage equipment, electrode durability is key. The S3010CD is durable inside and out. All the functional components – the pH glass, the meter connection, and the cable connection – are reinforced with protective elements. A double junction reference prevents contamination by heavy metals, proteins, TRIS buffer, and other contaminants.
    • Our most accurate and sensitive laboratory electrode
    • Extensive chemical compatibility
    • Double junction design prevents reference contamination
    • Reinforced meter and cable connections with removable pH glass guard
    • Low maintenance sealed gel reference design
  • ORP transmitter
    Our TX2000 is an intelligent transmitter/controller for reading pH and ORP sensors and programmable process control. The large LCD display shows pH/ORP value simultaneously with temperature. Compatible with all Sensorex combination-style pH and ORP sensors. Versatile mounting options for panel or wall mounting.
    • Reliable pH/ORP monitoring and process control
    • Simple sensor calibration
    • High-accuracy measurements
    • Compatible with all Sensorex combination-style pH/ORP sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads.
  • strantrol orp
    Our S420 series of ORP sensors deliver reliable online ORP (REDOX) monitoring as a direct-fit replacement for Strantrol* W2T3067 or W2T3068. Extended sensor lifetime is achieved through a large electrolyte reservoir. Durable CPVC construction with built-in protection for the pH measuring surface. Booted BNC connector included with optional cable lengths. Compatible with all ORP meters accepting a BNC connector.
    • Reliable measurement performance
    • Direct-fit Compatibility
    • Perfect for pressurized applications
    • Instantly ready for use
    • One year limited warranty
      * Strantrol is a registered trademark of Evoqua Water Technologies LLC. No affiliation, endorsement or sponsorship is stated or implied.
  • Strantrol pH Sensor
    Our S420 series of pH sensors deliver reliable online pH monitoring as a direct-fit replacement for Strantrol* W2T4677 or W2T4675. Extended sensor lifetime is achieved through a large electrolyte reservoir. Durable CPVC construction with built-in protection for the pH measuring surface. Booted BNC connector included with optional cable lengths. Compatible with all pH meters accepting a BNC connector.
    • Reliable measurement performance
    • Direct-fit Compatibility
    • Perfect for pressurized applications
    • Instantly ready for use
    • One year limited warranty
      * Strantrol is a registered trademark of Evoqua Water Technologies LLC. No affiliation, endorsement or sponsorship is stated or implied.
  • ORP sensor for measuring reduction potential of water
    The ORP1000 is a durable and easy to use ORP sensor. Great for outdoor applications, such as monitoring swimming pool chlorine, this probe has built in protection for the ORP sensor surface. Use the ORP1000 with any ORP meter accepting a BNC connector.
    • Very fast response time
    • Sealed, no maintenance reference design
    • Durable construction
    • Instantly ready for use
    • One year limited warranty
     
  • online process ph sensor

    Now Available with optional 4-20mA or MODBUS/RS485 Interface

    Our S272 series of pH sensors deliver reliable online pH monitoring for in-line or submersion installation configuration. Extended sensor lifetime with double-junction technology. Minimal maintenance required due to flat glass measurement surface. A versatile sensor for moderate and multi-purpose applications.
    • Reliable performance in demanding applications
    • Extended sensor lifetime
    • Optional 4-20mA or MODBUS/RS485 output
    • Input Voltage Options:
      • 12V DC – MODBUS only
      • 24V DC – 4-20mA & MODBUS
    • Versatile design for submersion or in-line mounting
    • One year limited warranty
  • online process ph sensor
    Our S272 series of pH sensors deliver reliable online pH monitoring for in-line or submersion installation configuration. Extended sensor lifetime with double-junction technology. Minimal maintenance required due to flat glass measurement surface. A versatile sensor for moderate and multi-purpose applications.
    • Reliable performance in demanding applications
    • Extended sensor lifetime
    • Versatile design for submersion or in-line mounting
    • One year limited warranty
  • acu-trol ph sensor
    Our S465 series of pH and ORP sensors deliver reliable online pH monitoring as a direct-fit replacement for Acu-Trol* 744000260 (AKpH-FB) pH sensor. Extended sensor lifetime is achieved through a large electrolyte reservoir. Durable PPS construction with built-in protection for the pH measuring surface. BNR connector. Designed for use with Acu-Trol® controllers AK110, AK600, AK2100.
    • Reliable measurement performance
    • Direct-fit Compatibility
    • Perfect for pressurized applications
    • Instantly ready for use
    • One year limited warranty
      * Acu-Trol is a registered trademark of Pentair. No affiliation, endorsement or sponsorship is stated or implied.
  • The UVT-LED-SW Online UV Transmittance Sensor provides reliable UVT measurements for UV disinfection optimization. Ideal for continuous monitoring of open channel wastewater UV disinfection, the UVT-LED-SW features an LED light source that lasts up to 5x longer than traditional mercury lamps. Our patented automatic cleaning and calibration system reduces fouling and drift, so technicians don't have to waste time servicing the units daily. Available with inline or submersion installation kits (see "What's Included" below). Perfect for first time installs or retrofits of existing UV disinfection monitoring systems.
    • Reliable continuous monitoring with patented automatic cleaning & calibration
    • Stable measurements driven by high-performance UV-C LED technology
    • Direct 4-20mA output (no transmitter or controller required)
    • Inline OR submersion installation available
    • Free factory scheduled maintenance for the first year
    Request a Quote  
  • conductivity controller cooling tower
    Our CX2000 is a fully-featured conductivity controller and 4-20mA transmitter for reading contacting conductivity sensors and programming process control. Set points are easily selected for 2 relay outputs and 1 wash control. Sensor calibration is simple with preset standards. The large LCD display features auto-sense back-light technology for use in all environments, including cooling tower controller applications.
    • Reliable process control
    • Lightning fast sensor calibration
    • Perfect for use in all environments
    • Compatible with a wide variety of sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads and either 30k NTC or Pt1000Ω RTD temperature compensation.
  • pH electrode
    Our S222 series of pH sensors are flexible for light-duty in-line or submersion online pH monitoring and control applications. Replace sensors in seconds with the quick disconnect BNC design. The kit includes S222CD pH electrode and S653 Cable Assembly. S653 cable assembly comes equipped with 1/2" NPT threads for easy submersion installation. For in-line use, install with a 3/4" mounting gland (Sensorex FC75P; sold separately).
    • Reliable performance in light-duty applications: Recessed bulb design ensures reliable performance
    • Lightning fast sensor changes: Modular design allows replacement cartridges to be changed in seconds without tools
    • Perfect for pressurized applications: Sealed, no maintenance reference design
    • Low total cost of ownership: All mounting hardware is reuseable. Only replace the quick-change sensor cartridge
    • One year limited warranty: We stand behind all our products with the Sensorex Guarantee
  • Light Duty pH Sensor
    Our S222 series of pH sensors are flexible for light-duty in-line or submersion online pH monitoring and control applications. Replace sensors in seconds with the quick disconnect BNC design. For use with the S653 series cable assembly, which comes equipped with 1/2" NPT threads for easy submersion installation. For in-line use, install with a 3/4" mounting gland (Sensorex FC75P; sold separately). For complete kit, purchase S222CD Light-Duty Online Process pH Sensor Kit.
    • Reliable performance in light-duty applications
    • Lightning fast sensor changes with simple quick disconnect BNC design
    • Perfect for pressurized applications
    • All mounting hardware is reuseable. Only replace the quick-change sensor cartridge
    • One year limited warranty
  • Reduce Maintenance Time and Increase Process Visibility
    • Communicates directly via 4-20 mA or Modbus Output
    • Configuration and calibration done with free web-based software
    Resistant to Corrosion, Coating, and Fouling
    • Noryl body has a wide solvent tolerance temperature and stability
    • Installed both in-line and submersion applications
    Wide Measurement Range
    • Measures up to 2,000,000 uS
  • acu-trol orp sensor for pentair controller
    Our S465 series of ORP sensors deliver reliable online ORP (REDOX) monitoring as a direct-fit replacement for Acu-Trol* 744000330 (AKORP-FB) platinum or 744000390 (AKORG-FB) gold ORP sensors. Extended sensor lifetime is achieved through a large electrolyte reservoir. Durable PPS construction with built-in protection for the pH measuring surface. Booted BNC connector included with optional cable lengths. Designed for use with Acu-Trol® controllers AK110, AK600, AK2100.
    • Reliable measurement performance
    • Direct-fit Compatibility
    • Perfect for pressurized applications
    • Instantly ready for use
    • One year limited warranty
      * Acu-Trol is a registered trademark of Pentair. No affiliation, endorsement or sponsorship is stated or implied.
  • Ideal for Heavy Duty Applications
    • Made from 316 Stainless Steel and PEEK
    • Robust single body design
    Multiple cell constants. temperature/pressure ratings and insertion lengths
    • 2 options for cell constants: 0.1/cm and 1.0/cm
    • 3 options of increasing temperature and pressure ratings
    • 2 options for insertion lengths: standard and extended
    Ultra-high temperature version ideal for boiler applications
  • free chlorine sensor
    Chlorine exists in different chemical forms in solution, including free chlorine (hypochlorite ion and hypochlorous acid) and combined chlorine. Free chlorine is the only form that can perform disinfection, so knowing free chlorine concentration is critical for applications like water and wastewater treatment. FCL free chlorine sensors from Sensorex provide a direct measurement of free chlorine in parts per million (ppm). Using field tested amperometric technology, our FCL sensors perform continuous monitoring without any additional reagents. With a direct 4-20mA output, the FCL sensors can be used with any instrument accepting a 4-20mA input or connected directly to a PLC or SCADA.
    • Direct free chlorine measurement in parts per million (ppm)
    • No reagents requried
    • Direct 4-20mA output
    Recommended accessories:
  • reliable redox sensor
    When measuring ORP in samples such as wastewaster that may contain proteins, heavy metals, or other contaminants, it is important to use a REDOX sensor designed to withstand unpredictable chemical environments. The ORP2000 features double junction reference protection, which prevents contamination by sample components that interact with silver (Ag). The durable Ultem® body ensures extensive chemical compatibility for safely testing unknown sample types.
    • Ultem® body construction and recessed protected glass
    • Double junction reference protection
    • Sealed gel-filled design to minimize maintenance
    • Reinforced meter connection for protection in wet or corrosive environments
    • One year limited warranty
  • ORP electrode
    In harsh laboratory or field conditions, where heat, moisture, or corrosive chemicals may damage equipment, ORP electrode durability is key. The ORP3000 is durable inside and out. All the functional components – the ORP measurement surface, the meter connection, and the cable connection – are reinforced with protective elements. Durable Ultem® body construction provides extensive chemical compatibility and withstands temperatures up to 100°C.
    • Durable Ultem® body
    • Double junction reference protection
    • Reinforced meter and cable connections
    • Low maintenance sealed gel reference
    • One year limited warranty
  • inline pH probe

    Now Available with optional MODBUS/RS485 Interface

    The S8200-ORP is a self-cleaning ORP sensor that delivers the most reliable online monitoring in a unique, modular package that minimizes total cost of ownership. Customize to exactly what you need for your application with optional electronic amplifier, 4-20 mA or MODBUS/RS485 module, and custom automatic temperature compensation configurations. Sensors can be changed in a few seconds with no tools or re-wiring required by swapping the S8000CD-ORP Quick Change Replacement Cartridge.
    • Reliable performance in demanding applications
    • Lightning fast sensor changes
    • Perfect for pressurized applications
    • Low total cost of ownership
    • One year limited warranty
    Optional Accessories:
  • electrodeless conductivity measurement package
    The SensoPRO Toroidal Conductivity Monitoring System delivers reliable conductivity monitoring with toroidal (inductive) sensor technology. The NEW EX2000RS toroidal conductivity transmitter has one 4-20 mA output, an RS-485 serial interface for use with Modbus RTU or ASCII, and can display conductivity, percent concentration, TDS, and salinity. The durable Noryl-body TCS3020 Toroidal (Inductive) Conductivity / TDS Sensor is resistant to fouling, coating, and corrosion and requires virtually no maintenance.
    • Most reliable conductivity / TDS monitoring
    • Minimal sensor maintenance requirements
    • Displays conductivity, TDS, % concentration, and salinity
    • Robust integration with Modbus RTU or ASCII
    • Sensorex Guarantee: One year limited warranty
    This rugged toroidal conductivity monitoring system is appropriate for harsh applications in Cooling Tower Water Treatment, Brine Concentration Measurement, Wet Scrubbers, and other environments involving high conductivity or high levels of dissolved solids. Click here to watch a video demo of the EX2000RS setup menu.
  • Toroidal Conductivity Transmitter Without Display
    Our TCSMA online toroidal conductivity transmitter without display is built for water treatment monitoring and aggressive process chemical applications. Ideally suited for applications in which 4-20mA signals are required and reliable performance is critical. The unit features isolated outputs with user-programmable temperature compensation. Durable construction with enclosure rated at NEMA 4X (IP65). Simple installation for wall, pipe, panel, or rail mounting. Use with TCS3020 Toroidal Conductivity Sensor for online conductivity monitoring with minimal maintenance.
    • Reliable process monitoring: Monitor conductivity using proven inductive measurement technology
    • Simple system integration: Loop-powered (16-35V DC) with isolated 4-20mA output signal
    • Perfect for use in all environments: LCD display with NEMA 4X, IP65 enclosure
    • For use with toroidal conductivity sensors: Online conductivity measurement with minimal maintenance
    • One year limited warranty: We stand behind all our products with the Sensorex Guarantee
    *Note: If you require local display, choose the SensoPRO Toroidal Conductivity Monitoring System or the TCSTX Toroidal Conductivity Transmitter with Graphical Display.
  • Ideal for Light Industrial Process Applications
    • Keyed flange ensures proper orientation for best results
    • Temperature compensation ensures optimal performance
    Reduce Maintenance Costs
    • Quick-disconnect cable to allow for cables to remain in place
    • Flat measurement surface resists coating
    • Calibrations are even faster when used with Sensorex Electronic Modules
    Smart Sensor-Capable via Sensorex Electronic Modules (Sold Separately) 
    • Purchase with EM802-EC Module - sold separately
    • Use with S856 Cable (Option FC)
    • USB Converter for Smart Sensors (S857 - sold separately) recommended for calibration and set-up
    For first time installations, select appropriate cable length and purchase FC875/T Flow Cell separately (shown under accessories).
  • ORP probe for measuring ORP online
    Moderately contaminated water, such as industrial source water or natural water resources, may contain chemicals and debris that damage ORP probe components. Continuous monitoring in these types of applications requires a durable and low maintenance ORP probe. Our S272 series of ORP probes feature a double junction design to protect the reference cell from contamination by sample components that interact with silver. The flat measurement surface is self-cleaning and resists breakage, for minimal maintenance.
    • Reliable performance in demanding applications
    • Extended sensor lifetime
    • Versatile design for submersion or in-line mounting
    • One year limited warranty
  • Toroidal conductivity meter
    Our TCSTX online toroidal conductivity meter and 4-20mA transmitter is built for water treatment monitoring in aggressive chemical and coating applications. The unit features isolated outputs with user-programmable temperature compensation. Durable construction with enclosure rated at NEMA 4X (IP65). Simple installation for wall, pipe, panel, or rail mounting. Use with our TCS3020 Toroidal Conductivity Sensor for online conductivity monitoring with minimal maintenance.
    • Reliable process monitoring
    • Simple system integration
    • Perfect for use in all environments
    • For use with toroidal conductivity sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads.
  • hot tap
    Users installing into large tanks, large process lines and scrubber lines will appreciate this hot tap assembly sensor kit. Adjustable insertion depth up to 12” ensures sensor is in flow for best results. Designed in CPVC for a user friendly cost compared to expensive stainless models, the S675 assembly is well suited for most water and wastewater treatment applications. Incorporates optional automatic temperature compensation (ATC) with 1000Ω RTD. Supplied with 10 foot cable. Kit also includes (1) S656CD Flat Surface pH Cartridge. The BV-1 Ball Valve (sold separately) facilitates removal from system without need for shutdown.
    • Durable CPVC design is suitable for most applications
    • Remove sensors for cleaning and maintenance without system shutdown
    • Easy installation
    • One year limited warranty
  • differential sensor refill solution
    Chemical processing, industrial water and wastewater applications can be challenging environments for a pH sensor. Chemicals from the process mix with the reference electrolyte solution, changing the chemistry and leading to erratic readings. Fortunately, our differential pH and ORP sensors feature buffered reference electrolyte (SDS-7050), which can be replaced or refilled when needed. Also compatible with other brands, including Hach* and Water Analytics*. Contains 500mL.
    • Internal fill solution for SD7000, SD7420, and SD7500 sensors
    • Compatible with popular Hach & Water Analytics 5-wire differential pH & ORP models
    • We stand behind all our products with the Sensorex Guarantee and one year warranty
    *Hach is a registered trademark of Danaher. Water Analytics is a registered trademark of Water Analytics. No affiliation, endorsement or sponsorship is stated or implied.
  • Conductivity Probe Sensor
    Used for Laboratory and Light Industrial Applications: Cell constants are made from graphite to provide good performance for the value. Configurable to Meet Your Exact Needs: 
    • Select from our options below for a quick delivery or fill out the contact us form at the bottom for a custom product!
    • Choose your cell constant, temperature compensation, cable lengths, and connectors
    Multiple Use Cases
    • Submerge in a tank or mount in-line in a pipe.
    • Compatible with Sensorex's CM1000 and most portable/bench-top meters
  • conductivity transmitter
    Our CX100 is an isolated output 4-20mA industrial transmitter for reading contacting conductivity sensors. Easily power the unit with available two-wire power supply loop. Ideal for connecting to a PLC for advanced control systems. Versatile mounting options for wall or panel mount.
    • Facilitates easy sensor maintenance with output 'HOLD' function
    • Accurate conductivity / TDS measurements
    • Flexible configurations with 6 selectable conductivity ranges
    • Compatible with a wide variety of contacting conductivity sensors
    • One year limited warranty
    Note: Transmitter is only compatible with sensors with tinned leads and Pt100 RTD temperature compensation. Consider our new CX105 as a great alternative to the CX100.
  • Replacement ORP Sensor
    Our S8000 series of ORP deliver the most reliable online ORP monitoring in a unique, modular package that minimizes total cost of ownership. These sensor cartridges can be changed in a few seconds with no tools or re-wiring required. Extended sensor lifetime with ERP Reference System.
    • Reliable performance in demanding applications
    • Lightning fast sensor changes with no tools required
    • Extended sensor lifetime
    • All mounting hardware is reuseable. Only replace the quick-change sensor cartridge
    • One year limited warranty
  • hot tap ph sensor
    Users installing into large tanks, large process lines and scrubber lines will appreciate this flat surface self cleaning pH sensor for use with our S675 hot tap (aka wet tap or insertion) assembly. The sensor features flat surface, self-cleaning pH glass for extended maintenance cycles. Protective feet protect against breakage against ball valve or side walls. A unique feature of this sensor is mounting orientation. It can be mounted in any direction whereas most pH sensor should be mounted 5 degrees above the horizontal plane. With the quick disconnect BNC, sensors can be changed in seconds should replacement be required. Designed for use with our S675 Assembly and a BV-1 Ball Valve for a complete hot tap pH measurement solution.
    • Reliable CPVC construction
    • Remove sensors for cleaning and maintenance without system shutdown
    • Extended sensor lifetime with double junction reference protection
    • Mount in any orientation for ease of accessibility
    • One year limited warranty
  • Hot Tap Insertion
    Users installing into large tanks, large process lines and scrubber lines will appreciate this hot tap assembly to simplify installation. Adjustable insertion depth up to 12” ensures sensor is in flow for best results. Designed in CPVC for a user friendly cost compared to expensive stainless models, the S675 assembly is well suited for most water and wastewater treatment applications. Incorporates optional automatic temperature compensation (ATC) with 1000Ω RTD. Supplied with 10 foot cable. Designed for use with our S656CD Flat Surface pH Cartridge and BV-1 Ball Valve to facilitate removal from system without need for shutdown.
    • Durable CPVC design is suitable for most applications
    • Remove sensors for cleaning and maintenance without system shutdown
    • Easy installation
    • One year limited warranty
  • orp calibration solution
    Use this pre-mixed ORP calibration solution for verifying and calibrating ORP sensors.The solution standard is 228mV and is widely used for ORP sensor calibration. Supplied in a pint (16oz) bottle with long term stability.
    • Simple calibration of ORP sensors to known standard
    • Fast response time with all ORP sensors
    • No mixing required - solution is pre-mixed and instantly ready for use
    • One year shelf life guaranteed
  • differential sensor salt bridge
    When chemicals from challenging applications get inside the sensor reference, chemical reactions can create insoluble salts. These salts clog the reference junction and interrupt the electrical circuit, leading to drifting measurements. Fortunately, our differential pH and ORP sensors can be maintained with the SDS replaceable reference junctions (salt bridges). Simply remove the old salt bridge and insert a new one to restore normal performance to a clogged sensor.
    • Replaceable reference junction for extending the lifetime of SD7000, SD7420, SD7500 sensors
    • Direct-fit compatibility for several popular Hach & Water Analytics models
    • One year limited warranty with the Sensorex Guarantee
    *Hach is a registered trademark of Danaher. Water Analytics is a registered trademark of Water Analytics. No affiliation, endorsement or sponsorship is stated or implied.
  • water flow regulator
    Our FM001 Flow Regulator allows for simple flow control, and is recommended for use with the FCL Series Free Chlorine Sensors and CLD Series Chlorine Dioxide Sensors when integrated with the FC72 Flow Cell. Provides precision flow control from 0.1 to 1.0 gpm (0.5 to 4.0 l/min) with 94% accuracy (full-scale range).
    • Facilitates high-accuracy measurements of free chlorine and/or chlorine dioxide
    • Precision flow controlfrom 0.1 to 1.0 gpm
    • Simple installation
    • One year limited warranty
  • Dissolved Oxygen Sensor

    Now Available with optional MODBUS/RS485 Interface

    Our DO6400 series of galvanic dissolved oxygen sensors deliver accurate measurements with very fast response time. Calibration is simple and only requires a single-point air calibration. Sensor directly outputs Millivolt, 4-20mA analog or MODBUS/RS485 digital signal scaled to the sensor range for easy PLC integration.
    • Fast response time for accurate dissolved oxygen monitoring
    • Direct MilliVolt, 4-20mA analog or MODBUS/RS485 digital output signal to integrate with a PLC or other control system
    • Input Voltage Options:
      • 12V DC – MODBUS only
      • 24V DC – 4-20mA & MODBUS
    • Ready for long-term deployment with large electrolyte reservoir
    • One year limited warranty
  • optical dissolved oxygen sensor

    Now Available with MODBUS/RS485 Interface & optional Titanium body

    The Lumin-S optical dissolved oxygen sensor delivers reliable DO measurements over a long operating life. There are no membranes to replace, no electrolyte solutions to replenish, and no anodes to clean. Maintaining the sensor is as easy as replacing the optical sensing cap once every 1-2 years, and since all calibration data is stored on the cap, there’s no need to calibrate. This dissolved oxygen sensor outputs a Modbus/RS-485 digital signal for easy PLC integration.
    • Reliable measurements: Optical sensor technology delivers accurate DO monitoring with no drift and no minimum flow
    • Long operating life with minimal maintenance: No membranes, electrolyte solutions, or anodes - just replace the cap once every 1-2 years
    • No calibration: All calibration data is stored on the cap for quick and easy startup
    • Simple system integration: Use Modbus/RS-485 to integrate with a PLC or other control system
    • One year limited warranty: We stand behind all our products with the Sensorex Guarantee
  • pH Sensor Mounting Gland (3/4")
    Our FC75P Mounting Gland are an easy and economical means for mounting pH sensors for in-line applications.  Compatible with all 12mm electrodes, including S222CD Light-Duty Online Process pH Sensor. For Flow Tee See FC75c