5X GRL8-02 Liquid Control Relay Level Control Relay 10A ACDC24V-240V Wide Range Voltage Water Pump Relay

In one device you can choose the following configurations:2 level control mode, 1 level control mode. Choice of function PUMP UP, PUMP DOWN. Relay status is indicated by LED. Designed for monitoring level in , basins, reservoirs, tanks. Sensitivity adjustable by a potentiometer (5-100kΩ).