Sensor Selection Tool

Which sensor do I need?

Disinfectant
Concentration
pH value
Temperature
Pressure
Conductivity
Absence of disinfectant > 1 day (AoD) ⓘ The absence of chlorine for more than 1 day or sustained chlorine concentrations below 0.1 ppm, lead to biofilm growth in the measured water. In such applications, a sensor should be used that provides reliable measurements even in the absence of disinfectants.	Yes No
Surfactants ⓘ Surfactants reduce the surface tension of water. They are found, for example, in detergents and soaps. TARAbase sensors must not be used with surfactants in the measurement water.	Yes No
Cyanuric acid (CYA) ⓘ In swimming pool chemistry, cyanuric acid is known as a “chlorine stabilizer.” Only specialized sensors are capable of providing reliable readings in the presence of cyanuric acid.	Yes No
Membrane-free chlorine electrolysis (MFE) ⓘ In membrane-free chlorine electrolysis, hydrogen is produced in the process water. This can cause problems with certain types of sensors.	Yes No
Wastewater ⓘ Wastewater is contaminated water from households, industry and agriculture that contains pollutants.	Yes No

Sensor Specifications

Signal output ⓘ Following options are available • Modbus • 4-20mA • -2V (digital internal signal processing) • -2V (analog internal signal processing)
Retaining groove position ⓘ

Suitable sensor types

Brand	Type
Please select a disinfectant.

Not recommended sensor types

Please select a disinfectant.