Reliable ORP sensors built for demanding processes


From chemical treatment to wastewater control, M4 Knick ORP sensors deliver stable, repeatable measurements in harsh operating conditions. Built with durable materials and powered by Memosens digital technology, they reduce maintenance effort while providing dependable performance you can trust.


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ORP 
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CIP/SIP Capable
SE 564 Memosens ORP Sensor

SE564

ORP Sensor for Liquids with Suspended Solids
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
Learn More
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
SE 565 Memosens ORP Sensor

SE565

All-Purpose ORP Sensor
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV
Learn More
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV
ORP 
Sensors 
SE 564 Memosens ORP Sensor

SE564

ORP Sensor for Liquids with Suspended Solids
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
Learn More
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
Temp: 32…266 °F
Pressure: 0…145 psi
Range: -1,500 mV…1,500 mV
SE 565 Memosens ORP Sensor

SE565

All-Purpose ORP Sensor
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV
Learn More
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV
Temp: 32…284°F
Pressure: -14.5…145 psig
Range: -1,500 mV…1,500 mV

An ORP sensor lineup designed for real process conditions

M4 Knick ORP sensors are built for processes where oxidation and reduction potential directly impact product quality, compliance, or treatment efficiency. From wastewater treatment to chemical processing, our sensors deliver consistent, repeatable measurements even in harsh, variable environments.

  • Built to handle aggressive media and demanding installations
  • Digital performance you can trust with Memosens
  • Flexible solutions backed by application expertise

ELL: Ready-to-Install pH Loop for Basic Applications

The ELL is a complete, preassembled digital pH measurement system designed for simple water and municipal processes. It includes a reliable Memosens sensor, a static holder, and an optional transmitter. The ELL is stocked in the US for quick shipment to keep your operations moving.

ORP Sensor Resources

WTF is an ORP Sensor?

Oxidation Reduction Potential (ORP) is a hallmark variable in the realm of liquid analytics. However, it doesn’t receive quite the same attention that other variables like pH and conductivity do, so we aren’t surprised when people are confused about ORP.

ORP Measurement Basics for the Process Industry

Oxidation Reduction Potential (ORP) is the measurement of a medium's ability to oxidize or reduce another medium.