The offered range is engineered for:
Application: Water level sensing at different levels
No corrosion or scaling due to non-contact with water or air
Sensor's conducting part not in contact with water or air
Floats at the level of water
Specification:
General Specification
Water Level Sensor : No contact of conducting element with the liquid
Sensor floats at different liquid levels Yes
Technical Specification
Working voltage : 220V+/-15%, 50Hz AC