The GF Signet 2281 Multipoint Switch is based on the conductivity principle and can be applied to liquids with conductivity higher than 10 μS/cm.

The probes have to be placed into the tank for level detection. The probe length should be in accordance with the level to be detected. Filling liquid in the tank will change the electrical conductivity between the reference probe and the outer probes. The established connection will be converted and activate a relay providing the output.

Applications: Potable water, Cooling water, Chemicals, Pump control.