Our pH5000 "swimming pool" pH sensor is reliable and easy to use – perfect for most swimming pool and other less demanding 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

Specifications

• Measurement Range: 0-14 pH (low NA+ ion error)
• Temperature Range: 0-60⁰ C
• Maximum Pressure - 1 Bar
• Body Construction: Polycarbonate
• Response Time: 95% in 1 second
• Connector: BNC
• Cable Length: 10 feet (3 meters)
• Dimensions: 150mm H × 12mm Dia

The S272 online process pH and ORP sensors deliver reliable online monitoring for in-line or submersion installation configuration. This sensor is designed to extend sensor lifetime with double-junction technology. Minimal maintenance required due to flat glass measurement surface. A versatile sensor for moderate and multi-purpose applications.

• Reliable performance in demanding applications: Liquid flow naturally cleans the flat pH measurement surface
• Extended sensor lifetime: Double junction technology extends sensor lifetime by preventing reference contamination
• Versatile design for many applications: 3/4″ NPT threads on both ends for submersion or in-line mounting
• Custom cable lengths and ATC available: standard 3m cable-BNC, order with extra cable and temperature sensor if required
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

Specifications:

• pH Measurement Range 0 - 14 pH (Sodium ion error when 12.3 < pH)
• ORP Measurement Range ± 2000mV
• Body Material Ryton® Polyphenylene Sulfide (PPS)
• Temperature Range 0-100°C (32-212°F)
• Pressure Maximum 100 psig
• Cable Length/Connector 3m (10ft)  Standard or Custom (by request)
• BNC or Tinned Leads Standard or Custom (by request)
• Process Connection 3/4” NPT Threaded

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:

• Differential amplifier module for applications with ground loop issues
• Unity gain amplifier module transmits sensor signal up to 1000ft
• 4-20mA or MODBUS RS485 transmitter module to connect to a PLC, SCADA or controller with 4-20mA/RS485 input card

Our CS150 Contacting Conductivity Sensor delivers accurate, reliable measurements of conductivity and total dissolved solids (TDS). Sensor package is built with automatic temperature compensation (ATC) with options for integration to most conductivity meters and transmitters.

• Low cost: for low pressure/temperature applications
• Reliable performance: Built-in automatic temperature compensation (ATC) for accurate measurements over a wide temperature range
• Accurate Conductivity / TDS measurements: Flat graphite measurement surface for accurate measurements and resistance to coating
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

Heavy-duty industrial and boiler conductivity sensors with 316 stainless steel construction for use in 3/4″ NPT openings. Featuring thermally-resistant PEEK insert and high temperature sealing rings for demanding applications. Supplied with 6″ PTFE coated leads for junction box connection and extension (not included). For use with Sensorex and other Transmitter/Controllers (order compatible temperature sensor) for industrial control of conductivity (EC) and total dissolved solids (TDS).

• Easily mounted in 3/4″ cross
• True industrial-grade sensor with 316 stainless steel construction
• Automatic temperature compensation (ATC) for reliable measurement across wide temperature range
• Configurable cell constant to match hardware configuration for simple integration
• One year limited warranty

Heavy-duty industrial and boiler conductivity sensors with 316 stainless steel construction for use in 3/4″ NPT openings. Mounted in 1″ cross with reducer to 3/4″. Featuring thermally-resistant PEEK insert and high temperature sealing rings for demanding applications. Supplied with 6″ PTFE coated leads for junction box connection and extension (not included). For use with Sensorex and other Transmitter/Controllers (order compatible temperature sensor) for industrial control of conductivity (EC) and total dissolved solids (TDS).

• Ideal for boiler applications and easily mounted in 1″ cross
• True industrial-grade sensor with 316 stainless steel construction
• Automatic temperature compensation (ATC) for reliable measurement across wide temperature range
• Configurable cell constant to match hardware configuration for simple integration
• One year limited warranty

Now Available with optional MODBUS/RS485 Interface

Our TCS3020 Toroidal Conductivity Sensor (Inductive Conductivity Sensor) delivers the most reliable technology for monitoring conductivity and total dissolved solids (TDS). Unlike contacting conductivity sensors, the TCS3020 is resistant to fouling, coating, and corrosion, and is designed for minimal maintenance and long service life. Built for harsh applications, the durable Noryl construction is tolerant to a wide range of solvents, and the sensor remains stable to temperatures up to 105° C.

• Inductive measurement technology ensures accuracy in chemical solutions and other high TDS environments
• Resistant to polarization effects caused by coating, fouling, and corrosion
• Wide measurement range (0-2000mS)
• Optional MODBUS/RS485 digital output signal to integrate with a PLC or other control system
• Little to no cleaning required
• One year limited warranty

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

Chlorine exists in different chemical forms in solution, including free chlorine (hypochlorite ion and hypochlorous acid) and combined chlorine. Free chlorine is the only form that can perform disinfection, so knowing free chlorine concentration is critical for applications like water and wastewater treatment. FCL free chlorine sensors from Sensorex provide a direct measurement of free chlorine in parts per million (ppm). Using field tested amperometric technology, our FCL sensors perform continuous monitoring without any additional reagents. With a direct 4-20mA output, the FCL sensors can be used with any instrument accepting a 4-20mA input or connected directly to a PLC or SCADA.

• Direct free chlorine measurement in parts per million (ppm)
• No reagents requried
• Direct 4-20mA output

Recommended accessories:

• Maintenance Kit (FCLA-5018): Maximize sensor lifetime by easily replacing membrane cap and fill solution
• Flow Cell (FC72): Maintains laminar flow across membrane and prevents air bubbles
• Flow Regulator (FM001): Provides consistent flow for added system stability

What is an Ion Selective Electrode (ISE)?

Ion Selective Electrode (ISEs) is a sensor that measures the  activity of a specific ion dissolved in a solution into an electrical potential. The voltage is dependent on the logarithm of the ionic activity, which is based on the Nernst equation. The ion-selective electrodes are used in analytical chemistry and biochemical/biophysical research, where measurements of ionic concentration in a liquid solution are required.

Which parameters can I measure with an ISE electrode?

Sensorex offers Ion Selective Electrodes (ISE’s) for:

• Fluoride (F-)
• Chloride (Cl-)
• Ammonium (NH4+)
• Postassium (K+)
• Nitrate (NO3-)

Sensorex ISE electrodes feature a combination electrode design to measure ion concentration in ppm. Depending on your application needs, you may select either the fixed cable style or detachable cartridge style. The detachable cartridge style electrodes are recommended for process applications, because they are easy to maintain or replace.