Use occasion:.
Water towers, water heaters, fish tanks, fish ponds, pumping pumps, the sensor automatically stops pumping when reaching the sensor, or pumping beyond the water level, can control high-current equipment base stations, machine rooms, libraries, garages, warehouses, archives, and other important occasions. Normally open normally closed signal output
Features:
When the water level is higher than the sensor, the relay will act, the pump will stop working or the pump will start to work, with a normally open and normally closed switch, the relay will act, normally open will become closed, normally closed will become open.
Good isolation: the sensor is separated from the controller, not afraid of water; anti-jamming, high sensitivity, rapid response and other characteristics High sensitivity: accurate detection and no false alarm;
Electrical parameters:
Working voltage: 10 to 15VDC (other working voltages can be customized)
Working current: <100ma

Load: 250V 10A AC or 30V 10A DC (lower than this range can be used)