FREE U.S. SHIPPING ON ORDERS $199+ | 24-Hour Rapid Delivery Available
Product Selection Filter Tool / Showing 1 - 50 of 113 results
Product Type
Parameter
  • ph buffer

    pH Buffer Solutions

    $9.75$31.49
    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.
    Select options Details
  • 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).
    Add to cart Details
  • 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
    Select options Details
  • 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.
    Add to cart Details
  • 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.
    Select options Details
  • 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
    Select options Details
  • 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
    Add to cart Details
  • 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)
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Select options Details
  • 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
    Select options Details
  • 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
    Select options Details
  • FC800
    Add to cart Details
  • 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
    Select options Details
  • 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.
    Add to cart Details
  • 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
    Add to cart Details
  • 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.
    Add to cart Details
  • 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:
    Select options Details
  • 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
     
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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.

    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Select options Details
  • 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
       
    Add to cart Details
  • 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
    Select options Details
  • 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
    Select options Details
  • 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:
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Select options Details
  • 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
    Add to cart Details
  • 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.
    Add to cart Details
  • automatic pH controller

    TX20 pH and ORP Controller

    $427.20
    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.
    Add to cart Details
  • Sensorex manufactures a quality line of industrial grade conductivity electrodes for use in high temperature boiler control. Sensorex boiler conductivity sensors are constructed from stainless steel bodies and pins (316SS), PEEK insulators and perfluoro elastomer o-rings. These boiler conductivity sensors have 2 each 3/4" male NPT threads. Two models are available. One model incorporates ATC elements (Pt1000Ω RTD or PT100 RTD) and the other does not. Model CS875HTTC includes temperature element while the CS875HT does not, depending upon your application requirements. The CS875HT and CS875HTTC feature a 1" insertion depth beyond the 3/4" MNPT mounting threads. All Sensorex boiler probes are supplied with 6" PTFE coated leads for integral mounting to a Forged Steel Junction Box/ Conduit connection and extension(customer supplied). Cell k value of 1.0 is standard.
    Add to cart Details
  • 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
     
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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
    Add to cart Details
  • 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.
    Add to cart Details
  • 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
     
    Add to cart Details
  • 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
    Select options Details