A sensor attached to the end of a cable, wound on a winch is lowered in to the well. over a calibrated wheel attached to the counter mechanism. The moment the sensor touches the water surface, a panel meter on the winch which is on the ground shows full deflection with buzzer...
Features : Easy To Install,IP 68 Sensor,IP 66 Display Enclosure,Inbuilt Telemetry System,Universal Power Supply (85-300 VAC / 24 VDC),Cable Length As Per Requirement,High Accuracy