Starting at $755.00
  • Usually ships in 2-3 weeks. Call for expedite options



  • 4 to 400,000 uS/cm @ 25°C
  • 100 psig at 150°F (65°C)
  • 10 ft/sec (3 m/sec) max flow rate
  • PT1000 RTD temp compensation
  • 3/4 inch NPT thread
  • No electrode corrosion - Toroid is fully encapsulated


The AquaMetrix ES electrodeless conductivity sensors are used in processes where conventional contacting sensors may become fouled or corroded.

Each sensor comes standard with a PT1000 RTD temperature device, which provides automatic temperature compensation to 77°F (25°C).

The AquaMetrix ES sensors can be mounted in flow through applications or submersion mounted in tanks or open vessels.

The terms electrodeless and toroidal are interchangeable in regards to this type of conductivity sensor.

Operating Principle:

Toroidal conductivity sensors are made up of two-wire wound toroids encapsulated in a potting compound and encased in a plastic body. One toroid acts as a transmitter and the other as a receiver. An electric current is induced between the toroids through the process solution. This current is directly proportional to the conductivity of the process solution.

Note: These sensors are made to interface with GLI controller or analyzers only.

Applications for AquaMetrix ES Electrodeless Conductivity Sensors:

  • Plating
  • High purity water applications
  • Pharmaceutical Applications
  • Reverse Osmosis systems
  • Fume Scrubbers
  • Boilers
  • Cooling Towers
  • Textile Manufacturing
  • Food and Beverage


This product can be used in the following applications: