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  • 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
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  • 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.

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  • 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
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  • 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
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  • 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).
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
       
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  • 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
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  • 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
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  • 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.
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  • 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.
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  • 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.
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  • 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:
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  • 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
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  • 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
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  • 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
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  • Replacement ORP Sensor
    Our ORP8000 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
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  • 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
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  • 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
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  • 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
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  • 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.
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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.
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  • 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.
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  • 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
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  • 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.
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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)
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  • 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
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  • 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
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  • 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
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  • free chlorine sensor

    Now Available with optional MODBUS/RS485 Interface

    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 analog or MODBUS/RS485 digital output, the FCL sensors can be used with any PLC or SCADA.
    • Direct free chlorine measurement in parts per million (ppm)
    • No reagents requried
    • Direct 4-20mA output or optional MODBUS/RS485
    Recommended accessories:
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  • 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
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  • 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:
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  • 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
  • electronic output modules

    Now Available with optional MODBUS/RS485 Interface

    For S8000 Modular pH, ORP and Contacting Conductivity applications which require more than a direct electrode output, plug-in electronic modules are available. Simply select the parameter type and desired amplifier/output.
    • Input Voltage Options:
      • 12V DC - MODBUS only
      • 24V DC - 4-20mA & MODBUS
    Select options Details
  • 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:
    Select options Details
  • 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:
    Select options 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