SensoLab pH/ORP/Conductivity Meters and Kits fit Wide Range of Laboratory Applications

Sensorex simplifies product selection with configurable probe and instrument packages
Garden Grove, California (December 14, 2017) – The new SensoLab benchtop meter series from Sensorex offers researchers a more complete sensing system with its pH/ORP/conductivity meters and kits. The new PM1000 and CM1000 meters pair with Sensorex’s laboratory sensors, which include basic, advanced and research-grade options to maximize measurement accuracy and sensor lifetime in applications from hydroponics to biomedical and pharmaceutical research. Configurable kits simplify the product selection process.

SensolabpH/ORP/conductivity meter

SensoLab CM1000 TDS meter and PM1000 pH/ORP meter pair with Sensorex’s laboratory sensors for pH/ORP/conductivity measurement and are available individually or as part of configurable kits to simplify the product selection process.

The SensoLab meters provide accurate, reliable measurement. An intuitive interface guides users through set up, calibration and measurement, with easy-to-read prompts and results displayed on its integrated screen. A small footprint saves valuable desktop space. The meters can be powered either by the included AC adapter or with AA batteries to eliminate cords.

The SensoLab PM1000 pH/ORP meter covers the range -2.00 to 16.00 pH with +/- 0.01 pH accuracy and -1999.9 to 1999.9 mV with +/- 0.05%FS accuracy for ORP. Its optional AUTOLOCK feature ensures repeatable and reliable pH and mV measurements. The SensoLab CM1000 TDS meter analyzes conductivity or total dissolved solids in samples, and works with probes across four different cell constants. Its intelligent auto-ranging capability automatically selects the best conductivity measurement unit based on the sample type.

Sensorex’s SensoLab kits provide ready-to-use options, packaging the SensoLab meter with a choice of four sensors and a set of three color-coded buffer solutions. An optional electrode stand can be added for hands-free and continuous measurement.

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SensoPro Complete Conductivity Monitoring System

Toroidal conductivity sensor paired with Modbus-equipped transmitter for reliable conductivity and concentration monitoring in a single package
Garden Grove, California (October 16, 2017) – To meet conductivity control needs in online water quality and process applications, Sensorex has introduced the Sensorex SensoPro Toroidal Conductivity Monitoring System. The system combines a Sensorex TCS3020 probe, capable of reliable conductivity measurements in even the harshest of environments, with the company’s new EX2000RS transmitter, featuring Modbus communication for robust system integration. Monitoring with SensoPro can prevent scaling and corrosion, reduce excessive water usage, and optimize processes in a range of applications including cooling tower water control, wastewater treatment, brine analysis, desalination, chemical processing, and other harsh or high conductivity environments.

Sensorex SensoPro

Sensorex SensoPro Complete Conductivity Monitoring System includes TCS3020 conductivity probe, and the EX2000RS transmitter.

The TCS3020 probe used in the SensoPro system measures conductivity using toroidal sensing technology, which is more stable and reliable compared to traditional contacting conductivity sensors. Toroidal conductivity sensors do not cause polarization, do not become fouled, and rarely require maintenance. This design, along with the TCS3020’s rugged Noryl-body, reduces maintenance and increases reliability, resulting in more cost-effective operation over time than contacting sensors.

The Modbus-equipped EX2000RS toroidal conductivity transmitter completes the SensoPro system. The unit includes one analog output and can monitor conductivity, percent concentration, total dissolved solids (TDS), and salinity. The RS-485 serial interface with Modbus RTU or ASCII protocol provides multiple output options for integration with industrial automation systems. The onboard screen displays measurements in real-time and is capable of showing up to four weeks of historical measured values. The EX2000RS has a small form factor, an IP65/Nema4X case, weighs just 1.1 pounds, and can be wall or panel mounted.

Sensorex’s SensoPro Toroidal Conductivity Monitoring System is backed by a one-year limited warranty. This system as a whole features a conductivity measuring range of 0.0 μS/cm-2000 mS/cm, percent concentration measurements for NaCl, HCI, HNO3, NaOH, H2SO4, H3PO4, and automatic or manual temperature control. The result is a reliable conductivity and concentration monitoring system, in one simple package.

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Sensorex Donates Monitoring Instruments to AZ Pure Water Brew Challenge

UVT-LED monitors aboard mobile water plant treating water for reuse in beer making
Garden Grove, California (September 28, 17) – Sensorex has donated two UVT-LED UV transmittance monitors that were deployed in a mobile water treatment center. The monitors are part of the AZ Pure Water Brew Challenge–an inspired public education campaign to raise awareness of water reuse through a craft brewing competition. The UVT-LEDs are used to measure water quality of incoming wastewater and again near the end of the process to validate readiness for disinfection.

AZ Pure Water Brew Challenge Sensorex UVT

The Arizona Pure Water Brew Challenge truck uses Sensorex UVT-LED monitors to ensure maximum water purification efficiency.

The Pure Water Brew Challenge ( is the brainchild of the Pima County Southwest Water Campus, made possible by over $300,000 in funding it earned as a result of winning the New Arizona Prize: Water Innovation Challenge in 2016. That challenge awards funding to the best solution designed to advance the sustainability of Arizona’s water future. As the team started to make their concept of a mobile water treatment plant a reality, they turned to Sensorex for help measuring key process parameters.

The treatment process begins with recycled community wastewater, which passes through ultrafiltration, reverse osmosis, UV/advanced oxidation, activated carbon, and finally, chlorine disinfection steps, emerging as ready-to-brew pure water. Sensorex’s UVT-LEDs are deployed just before the UV/advanced oxidation step, and again before chlorine disinfection.

Sensorex’s UVT-LED delivers fast, accurate, UV transmittance readings for water treatment applications where UV disinfection is used. With proper UV dosing adjustment, based on UVT values, fluctuations in organic content can be accounted for and UV disinfection energy efficiency is increased. The UVT-LED is available in online and portable models.

Sensorex provided both models to the Pure Water Brew team. The online UVT-LED was mounted directly into the water pipe prior to the UV/oxidation step, taking automatic measurements every 60 seconds. Readings were directly output via a 4-20mA signal for UV system control and data logging.

Sensorex UV Transmittance; AZ Pure Water Brew

Sensorex online and portable UVT-LED transmittance monitors were used at two points in the purification process.

The portable model was used prior to chlorination, along with total organic carbon analysis, to evaluate the potential for the formation of disinfection byproducts. The handheld monitor takes measurements at the single push of a button, with readings instantly displayed clearly on the backlit LED display. By confirming with the UVT-LED that the organic content of the water was low, the Pure Water Brew team could confidentially proceed with the chlorine disinfection.

The Pure Water Brew team found the UVT-LED instruments “straightforward and simple to operate,” according to team Research & Innovation Leader, Jeff Prevatt. He continued, “The Sensorex UVT-LED monitors were an important tool in helping to validate and document exceptional water quality we achieved throughout the process.”

For the Brew Challenge, each of the 26 participating breweries was allocated enough fully treated water from the mobile plant to brew a batch of beer for the challenge judges and public tastings. In all, more than 80,000 gallons of recycled community wastewater were treated in the mobile plant. Winners were awarded and public tastings were held September 10th, at the 32nd WateReuse Symposium in Phoenix, Ariz. Dragoon Brewing Company of Tucson, Ariz. emerged victorious with their Clear Water Pilsner

The UVT-LEDs were a natural fit with the Pure Water Brew team’s mission to protect Arizona’s water future, as the instruments’ highly efficient UV-C LED lamps do not contain environmentally harmful mercury. Improper disposal of traditional mercury lamps used in transmittance instruments can contaminate water supplies.

Both UVT-LED models require zero warm up time. The online version’s patented cleaning and calibration feature ensures reliability and prevents fouling and build-up. An integrated wiper delivers a swift cleaning cycle before each reading is taken. The portable model is the industry’s only truly handheld UVT instrument. With low battery consumption, it is capable of up to 350 readings on a single charge.

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Universal Differential pH Water Quality Sensors

Sensorex SD7500 works with any existing conventional pH transmitter
Garden Grove, California (June 29, 2017) – Routine sensor replacement is a necessary maintenance step in continuous online pH monitoring. The Sensorex SD7500 Universal Differential pH Probe extends the working lifetime of sensors, reducing maintenance frequency, without compromising accuracy and reliability. Universal compatibility with virtually any brand of conventional pH transmitter enables easy upgrade of existing sensors for industrial and municipal wastewater treatment and neutralization; metal finishing and plating; wet fume scrubbers; chemical processing; and other online water quality and process applications.

Universal pH replacement sensor

The SD7500,a universal differential pH replacement probe, is accurate and reliable, with extended sensor life.

The SD7500 probe measures process pH differentially with three electrode sensors: a process pH electrode, a pH reference (actually a second measuring pH electrode in a known pH 7.0 buffered cell solution protected by a replaceable salt bridge reference junction), and a titanium ground electrode. The result is a highly accurate differential pH measurement that is virtually unaffected by ground loop measurement errors.

The three electrode design, coupled with durable Ryton® Polyphenylene Sulfide (PPS) body construction, resists process contamination. The double junction construction of the replaceable salt bridge further guards against fouling, even in highly aggressive chemical environments. Automatic temperature compensation with an accurate Pt1000 RTD ensures pH measurement accuracy over a wide temperature range.

Differential pH sensors are designed so the double junction salt bridge and the buffered reference cell solution can be replaced in the field by on-site operators, at a much lower cost than total sensor replacement. Compared to conventional combination sensors, differential pH sensors provide measurements of greater stability, over longer periods of time, with less downtime and maintenance. Typical sensor service lifetime ranges from 3 to 5 years.

With a self-powered preamp and combination sensor output, the SD7500 Differential pH Probe can be used with most conventional online pH/ORP transmitters and controllers. This enables drop-in replacement in existing process installations, as well as easy integration into new systems. Manufactured in the USA, Sensorex’s SD7500 probe is backed by a two-year limited warranty.

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Sensorex Appoints New President

Aseem Sharma takes helm at water measurement specialist
Garden Grove, California (May 31, 2017) – Aseem Sharma has been appointed President of Sensorex, a leading designer and manufacturer of sensors and instrumentation for real-time water analysis.


Aseem Sharma, President of Sensorex

In his new role, Sharma will be responsible for strategic management of Sensorex’s global operations. The company’s electrochemical and optical sensors measure pH, ORP, UV transmittance, dissolved oxygen, free chlorine, chlorine dioxide and other specialty elements. Its sensors, instrumentation, and accessories are used in a wide range of OEM, industrial and municipal water, laboratory, agricultural, and manufacturing applications.

Sharma brings extensive global management experience in a variety of industries to his role at Sensorex. Most recently, he was Vice President of Strategic Partnership for Amryris, Inc., a renewable chemicals company. Prior to that, he was with Owens Corning, as General Manager of its North American Building and Composite Materials business.

Sharma developed his international experience during his tenure with Corning, Inc., where he moved from Director of Strategy Planning and Business Development to President of Corning South Asia in New Delhi, India. His career started in the water businesses of ABB and W.R. Grace (now GE Water), bringing him full circle as he returns to the water industry at Sensorex. Sharma earned an MBA from Lehigh University, and a Chemical Engineering degree from the Indian Institute of Technology.

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Truly Portable Handheld UV Transmittance Monitor from Sensorex

UVT-LED-H efficiently and accurately measures UV transmittance
Garden Grove, California (April 18, 2017) – The UVT-LED-H handheld UV transmittance monitor delivers fast and accurate UV transmittance readings in any applications employing UV disinfection. Its compact size and ease-of-use are equally well-suited to field measurements, lab use, and calibration verification of online UVT analyzers. An LED light source significantly reduces maintenance burden and environmental impact, with an extended service life.

Sensorex UVT-LED-H

Handheld UV Transmittance measurements in the lab and field.

The UVT-LED-H is the only currently available portable UV-transmittance monitor that is handheld. The ergonomic unit is simple to operate with a single push button, and the instant measurements can be read clearly on the backlit LED display. The UVT-LED-H verifies UV dosing and efficient operation of UV disinfection systems in municipal drinking water, wastewater, and other industrial water quality applications, such as food and beverage process water, as well as in quality testing labs associated with those applications.

The instrument’s highly efficient UV-C LED lamps are more stable, improving accuracy when compared to instruments with traditional mercury light sources. Additional benefits include zero warm up time and low battery consumption, taking up to 350 readings on a single charge.

The mercury-free UV-C LED light source extends sensor lifetime up to 5 times, compared to monitors using mercury lamps. It also significantly lowers operating expenses related to UVT monitoring by eliminating field serviceable parts and disposal of lamps containing environmentally harmful mercury.

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Pool and Spa Sensors for Water Quality Monitoring

Ready pools, spas and aquatic attractions for the summer season with Sensorex pH/ORP probes
Garden Grove, California (March 22, 2017) – As the weather warms and pool equipment is being readied for the new season, replacement of pH and ORP sensors is a crucial part of the maintenance process. Monitoring water quality with Sensorex’s cost-effective pH and ORP sensors impedes algae growth, reduces surface erosion and increases swimmer enjoyment.

pH and ORP Probes

The Sensorex S465 Series are a direct replacement alternative to Acu-Trol® pH and S420 Series replace Strantrol® pH and ORP probes.

The Sensorex S465 Series are a direct replacement alternative to Acu-Trol® pH and ORP probes, and the robust S420 Series replace Strantrol® pH and ORP probes. In addition to a reasonable price point, both Series are easy to integrate into existing systems and offer long, reliable service life. Sensorex’s advanced sensor technology delivers accurate measurement over a range of 0-14 pH or +/-1000 mV for ORP. Sensors use a higher volume of Sensorex’s proprietary polymer sensor reference gel for longer service life.

Proper disinfection of aquatic environments is a delicate balancing act. Over-chlorinate and cause bather discomfort and equipment erosion; under-chlorinate and increase the risk of illness, odor and discolored water. But identifying correct chlorination levels is difficult to determine. Water quality can fluctuate quickly based on the number of swimmers and the sweat, dirt, oils, and sunscreen they introduce into the water, as well as the level of biological contaminants like insects and leaves. Even temperature plays a role, as some bacteria thrive at temperatures above 80-90°F.

In addition to continuously monitoring pH levels, measurement of Oxidation Reduction Potential (ORP), is one the most reliable and efficient ways to ensure the effectiveness of a sanitizer, such as chlorine, in pools and spas. ORP levels indicate effective chlorination concentration for killing off bacteria and preventing organism growth.

Both the S465 Series and S420 Sensor Series employ a ½” NPT connection for easy in line installation or use with existing Acu-Trol® or Strantrol® flow cells, without modification. The S465pH and ORP models are supplied with a BNR connector for quick connection to an aquatic controller, while the S420 models are available with the option of 30 inch or 10 foot cable lengths for easy integration into existing systems. Advanced signal shielding reduces noise for more accurate communication with process control systems.

Sensorex offers a full overview of Swimming Pool Chemistry and Monitoring at, as well as a quick cross reference guide ( to find the right retrofit sensor.

*Acu-Trol is a registered trademark of Pentair. No affiliation, endorsement or sponsorship is stated or implied.
*Strantrol is a registered trademark of Evoqua Water Technologies. No affiliation, endorsement or sponsorship is stated or implied

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Sensorex Water Sensors Chosen for Innovative Smart Village Concept

Dissolved Oxygen and pH probes monitor key water parameters for aquaculture industry in Indian village of Mori
Garden Grove, California (January 18, 2016) – Sensorex dissolved oxygen and pH sensors are being used to monitor shrimp farms in Mori Village, a pioneering “Smart Village” in India. Three sets of Sensorex DO6441 dissolved oxygen (DO) and S8000 modular pH sensors have been deployed to measure water quality and key aquaculture parameters to increase the yield and efficiency of shrimp farming in the village.

Sensorex DO sensor, pH sensor

Sensorex dissolved oxygen and pH sensors are deployed in a shrimp cultivation pond in Mori Village, India. The aquaculture monitoring system is part of a pioneering “Smart Village” concept.

The Smart Village project is a collaboration of the Garwood Center for Corporate Innovation, Haas School of Business, University of California, Berkeley and the Andrah Pradesh Government of India. The project seeks to extend the concept of connected “Smart Cities” to rural villages, where more than half of the world’s population reside. Mori Village is the first prototype of the concept. Its objective is to empower the residents in the village, by providing access to the tools and technology to carry on their entrepreneurial activities.

Shrimp farming is one of the five top industries that make up the economic base in the village of 8000 residents, which is located in the East Godavari District of Andhra Pradesh. It has the potential for high margin returns but can be also be high risk due to preventable disease. Traditionally, manual samples of the water were taken and sent to a lab, a labor intensive and time consuming process. The delay between taking a reading and waiting for the results meant critical time was lost in addressing any imbalances.

Once shrimp farming variability was identified as a pain point by the villagers, interested tech firms were brought in to co-innovate with the villagers to develop tech solutions. Participating corporate partners include Google, IBM, and NASA. Sensorex partnered with Appscape, Inc., who developed a cloud based monitoring and control system to be used with the Sensorex probes.

One set of DO and pH sensors is deployed in three separate shrimp ponds, taking water quality readings critical to maintaining the health of the livestock. The probes are equipped with Sensorex’s 4-20mA output modules, which feed into a PLC running AppScape’s app. The app is accessed from a mobile device and displays real-time readings of pH and DO. The app enables control of the pond’s aerators, which can be operated remotely via the app. Additional app features include data logging, trend analysis, and export for reporting and records backup.

Beyond the oxygen needed by the shrimp population to survive, grow and reproduce, dissolved oxygen is essential to the aerobic decomposition of organic solids that ensures a healthy habitat. This is especially important in aquafarming applications, where the high population density can adversely impact this natural process. By monitoring with Sensorex’s DO6441, farmers immediately know if an unhealthy environment is developing. When values fall below the optimal range of 2.5-3.5 ppm, the ponds’ aerators can be turned on to bring more oxygen into the water. Once the correct DO level is reached, the aerators can be turned off, lowering energy consumption and overall operating costs.

Like dissolved oxygen levels, pH levels can significantly impact the health of aquaculture livestock. Extremes in pH can lead to fish kills. With monitoring, pH altering variables like acid rain and agricultural run-off can be remediated with buffers and chemicals to restore pH balance.

Sensorex DO and pH sensors provide reliable, accurate measurement over a range of 0-20ppm dissolved oxygen and 0-14 pH. Constructed with durable, fully submersible bodies, the probes’ flat measurement surfaces stay clean, ensuring accurate readings with low maintenance and long service life. A range of options are available to customize sensors to application needs.

The Smart Village prototyping phase wrapped up in December, 2016, with an inaugural event to present the new technology to Andhra Pradesh’s Chief Minister. The Sensorex sensors are deployed and monitoring their first crop of shrimp, with harvest expected in 4-6 months. The prototype Smart Village concept could potentially be applied to 650,000 Indian villages and eventually around the world. Sensorex monitoring solutions can be applied to a range of aquaculture and industrial processes to improve the quality of life in rural communities.

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Sensorex Launches New Laboratory pH Sensor Family for Every Application

Basic, Advanced and Research-Grade sensors available with a range of customized options
Garden Grove, California (October 27, 2016) – Sensorex’s new line of laboratory pH sensors offer a range of options to maximize measurement accuracy and sensor lifetime. The Basic, Advanced, and Research-Grade pH sensors allow end users to choose just what fits their application needs–eliminating overspending on overly sophisticated sensors, or on frequent sensor replacement in challenging environments. All Sensorex pH sensors offer accurate and reliable measurements across full pH ranges (0-14), compatible with all pH meters accepting a BNC connector.

Sensorex pHSensors

Sensorex’s new laboratory pH sensor family suits every application.

Sensorex’s Basic pH1000 sensor is durable and easy to use, ideal for swimming pool, aquarium, or hydroponics measurement, as well as science class experiments. Designed to withstand regular wear and tear, with a durable polycarbonate body and built-in protection for the pH glass measuring surface, the pH1000 provides reliable, stable readings in temperatures of up to 60°C.

The Advanced family is more versatile for more difficult sample types in environmental, wastewater and food production applications. The standard and specialty Advanced models offer extended sensor life and measurement accuracy in temperatures of up to 80°C. The sensors feature chemically-resistant Ultem® bodies, double junction references, and booted meter connections for durability. This family includes the pH2000 extended life laboratory sensor for unpredictable samples prone to contaminants. The pH2100 flat tip electrode is ideal for viscous samples, slurries, and soft surfaces such as agar plates and skin. The family’s pH2200 spear tip sensor is specially designed to pierce semi-solids like food and soil.

The pH3000 Research-Grade sensor is Sensorex’s most sensitive lab electrode, best for low ionic samples, including drinking water, biomedical and pharmaceutical applications. It is specially designed to respond quickly and accurately to rapid temperature changes, up to 100°C, with accuracy down to 0.04 pH.

To help users choose the best sensor for their applications, Sensorex has launched an interactive sensor selection tool.

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Sensorex Expands UV Transmittance Offerings with Submersible Sensor

UVT-LED-SW delivers efficient, accurate UV transmittance monitoring for municipal wastewater applications
Garden Grove, California (September 8, 2016) – The UVT-LED-SW UV Transmittance Sensor provides continuous monitoring for accurate UV disinfection dosing. The probe delivers fast, accurate, UV transmittance readings in open channel wastewater treatment applications where UV disinfection is used. With proper dosing adjustment based on UVT values, fluctuations in organic content can be accounted for and UV disinfection energy efficiency is increased.

Sensorex UVT-LED-SW

The UVT-LED-SW Transmittance delivers fast, accurate, UV transmittance readings

The UVT-LED-SW is mounted directly to the wall of any open channel system, taking automatic measurements every 60 seconds. The sensor directly outputs a 4-20mA signal, integrating into a variety of process monitoring systems without a transmitter or controller.

Patented cleaning and calibration features ensure UVT-LED-SW measurements are accurate and reliable. The integrated Teflon wiper delivers a swift cleaning cycle before each reading is taken, preventing fouling and build-up. At the same time, the sensor self-calibrates to an integrated quartz reference standard.

The unit’s highly efficient UV-C LED lamps provide up to five times longer life than comparable mercury lamps, eliminating field-serviceable parts. All of these features reduce maintenance and significantly lower operating expenses related to UVT monitoring and UV disinfection. No costly service and maintenance contracts are required; all maintenance can be performed onsite.

Sensorex offers several installation kits, including mounting hardware for new installations and retrofits of Hach UVAS models. The UVT-LED-SW is also compatible with Hach SC200 controllers for retrofit installation.

The submersible UVT sensor is the third product in the Sensorex UVT-LED family. It joins the UVT-LED-PW, an in-line UVT monitor that can be mounted directly in a pressurized pipe or sampling line, and the UVT-LED-H, a lightweight, battery operated, handheld UVT monitor ideal for sample measurements in the field, as well as periodic verification of calibration of online UVT analyzers.

Sensorex will be exhibiting the UVT-LED-SW at WEFTEC 2016, booth #3601.

*Hach is a registered trademark of the Hach Company. No affiliation, endorsement or sponsorship is stated or implied.


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