Eletechsup High Mid Low Level Indicator DC 12V Water Liquid Level Controller Sensor Switch Relay Module for Motor Fish Tank Waterhouse (Controller+Probe)

Description:

1 Working voltage: DC 12V

2 Standby current 6MA

3 Working current 32MA

4 Size: 63mm X 29mm X 19mm

5 Weight: 20 g

6 Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC

There are two purposes for connecting the NO and NC ports of the relay:

The water pump is connected to the COM NC port to automatically fill the water tower

The water pump is connected to the COM NO port to automatically pump water from the water tower 

Application

Home water tower automatic water supply system

Aquarium Fish tank Water Changer System

Fill the water tower automatically

Automatic pumping from water tower

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 control

Working principle(Fill the water tower automatically): 

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.