Walchem conductivity electrodes
Webmaster, 400 series cooling tower/ boiler controllers are a perfect match with Walchem's range of electrodes. Available as low cost CPVC contacting and non-contacting toroidal sensors, or stainless steel sensors for boiler applications.

Summary of key benefits
in-line or submersion mounting (none boiler applications)
easy installation & electrode replacement
low cost CPVC sensor available for temperatures below 80 degree C
PEEK™ sensor construction provides excellent chemical resistance and with stands
high temperature solutions, ideal for plating applications

The non-contacting, toroidal, sensor technology eliminates the contamination/ calibration issues that direct contacting sensors are prone to. Measurements are extremely reliable, the sensor is immune to thin coatings that would impair operation of direct contacting sensors and a wide range of conductivity may be measured.


The boiler electrodes are rated to 250 PSI and can be located upto 250 feet from the controller.