Os sensores amperométricos de desinfecção da Walchem oferecem uma solução econômica e confiável para seus requisitos de controle de desinfecção. Compatíveis com a Série WDIS e os controladores WebMaster®, os sensores medem a concentração química de forma contínua e direta, sem o uso de reagentes.

Disinfection Sensors


We offer sensors, in varying ranges of concentration, for free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid and hydrogen peroxide. Whether the application is a cooling tower, food and beverage, drinking water, wastewater, or swimming pool, these sensors are the ideal solution.

Low maintenance – no costly reagents or tubing to replace
Broad range of applications – wide variety of oxidizers and measurement ranges
Fast response – continuous measurement technique
No waste – the sample can be returned to the process

Non-Membrane Disinfection Sensors

  • The disinfection of hot potable water systems as currently required by the new ASHRAE standardsUp to 70 °C (158 °F)
    • Hospitals, schools, universities
  • High pressure sample loops where the water cannot be discharged to open atmosphere
    • Up to 8 bar (117 psi)
    • Hot tubs, cooling towers


  • Free Chlorine and ClO2 sensors
  • Designed for higher pressure and temperature, clean water applications
  • Amperometric 3-electrode sensors
  • The measuring and counter electrodes are in direct contact with the sample
  • The reference electrode is isolated from the water by an electrolyte-filled housing

Non-Membrane Sensors