Sensorex electrodes can replace most brands
sensorex pH and ORP electrodessensorex conductivity electrodessensorex dissolved oxygen electrodesensorex chlorine dioxide electrodesensorex free chlorine electrode
A wide range of pH, ORP, conductivity, dissolved oxygen, free chlorine and chlorine dioxide electrodes for use in submersible, in-line and insertion formats. Sensorex electrodes can be retrofitted to most industrial controllers, portables and laboratory meters.

Dedicated Walchem electrodes
Walchem pH and ORP electrodesWalchem conductivity electrodesWalchem peracetic acid electrodesWalchem chlorine electrodesWalchem chlorine dioxide electrodesWalchem ozone electrodes
A wide range of pH, ORP, conductivity, peracetic acid, chlorine, chlorine dioxide and ozone electrodes. These are dedicated electrodes designed to be used with their range of cooling tower, pH/ORP, conductivity, disinfection and boiler controllers.