General description Designed for monitoring levels in basins, reservoirs, and tanks, the GRL8-02 Liquid Control Relay offers versatile configurations including 2-level control mode and 1-level control mode. Users can select between PUMP UP and PUMP DOWN functions, with sensitivity adjustable via a potentiometer (5-100kΩ). The relay status is indicated by an LED, and it features an adjustable time delay on the output ranging from 0.1 to 10 seconds. Technical specifications Supply voltage: 24-240V Size: 90 x 18 x 64 mm Material: ABS Color: White Measurement allowed error: +/- 1-3 cm Package Contents 1 x Relay 1 x Instructions Other information