With sensitivity adjustment, as a function of the conductivity of the immersion liquid, the RFA 101 SIM is a relay produced by micro controle, which allows to control the emptying of a hole or well, to control the level in conductive liquids and to ensure the protection of the submersible electric pumps against the lack of water.
The model is available in the following supply voltages: AC (24V, 230V and 400V) and has a sensitivity setting between 4 to 30 KΩ.
The base is an 11-pin socket, wiring diagram on the side of the relay.
Check here all the characteristics of this product.