Product Name: 30A 12V Water Level Automatic Controller Liquid Sensor Switch Solenoid Motor PumpPackage inlcuded:1 x DC/AC 12V 30A Water Pump Automatic Start-Stop ControllerDescription:

1 Working voltage: DC 12-15V(AC 9-12V)
2 Standby current 11MA
3 Working current 82MA
4 Size: 67mm X 33mm X 24.5mm
5 Weight: 42.5 g
6 Maximum load: 30A /250VAC,30A/120VAC,30A/30VDC

Note:
Package does not contain probe (wire).No need to use a dedicated probe, the probe can be made using household wires
For safety, use an AC/DC power supply with good isolationApplication

Home water tower automatic water supply system
Water Pump Automatic Start-Stop Controller
Aquarium Fish tank Water Changer System
Conductive liquid automatic control
Automatic feeding system for poultry and livestock
Farm automatic water supply system
And other occasions that require automatic water supply and water exchange.
Solenoid valve water pump motor automatic controlInterface description:
HIGH : Upper limit probe
OUT : Output probe
LOW : Lower limit probe
IN+ : Power terminal 1 (regardless of positive and negative)
IN- : Power terminal 2 (regardless of positive and negative)
NC : Relay normally closed contact
COM : Relay common contact
NO : Relay normally open contact

Working principle:
The water level rises: When the water level is lower than the ''Low level'', the water pump starts to supply water to the water tower; when the water level is higher than the ''High level'', the water pump stops supplying water.

Water level reduction: When the water level is lower than the ''High level'', the water pump does not work and the water level continues to decrease. When the water level is lower than the ''Low water level'', the water pump starts to supply water to the water tower.




Probe making
1 Prepare some wires (ordinary household wire and cable)
2 Strip the wires 10-20 mm at both ends
3 Connected probe (wire)