- HE version: Level detection on neutral liquids
- HS version: Level detection on aggressives liquids

Probes HE and HS, hanged electrodes, are to be in use with relays ES2001 for detection of liquid levels in storage tank.

Depending on the model, up to 5 levels can be detected (5 trigger points using the wall tank as a reference electrode). Provide a reference electrode if the tank is made of insulating material (i.e. up to 4 level detection + 1 reference).

This technical solution is not suitable for liquids with hydrocarbons or grease or for any other application where an insulating layer is liable to deposit on the electrodes.

Flexible probes are recommended for tanks with a height greater than 1000 mm.