Automatic Water Level Controller Module - 12V Relay - XH-M203 Liquid Pump Switch

A fully automatic module working on the STM8, and its work is to control water or any other liquid level. We have 2 float sensors with NO characteristics, one at the top of the tank and the other at the bottom.

When assembling the system as in the diagram in the image gallery, the system works as follows. When the water level drops below the lower sensor, the relay turns on the pump, which pumps the water until the water level again reaches the level of the upper sensor, then the relay disconnects.

Using NC sensors, or simply turning the dedicated sensors 180 degrees, we will get the opposite effect. So the tank will then be emptied by the starting pump when it reaches the upper sensor level, and it will turn off when it reaches the lower sensor level.

The module is used to maintain water level in tanks, and when signals are received from two sensors, you can set a maximum and minimum level using specific float sensors

Widely used in water conservation projects, water tower, barrels and water tanks, water pond etc.

Technical data

Model: XH-M203
Working voltage: AC / DC12V
Contact switching current: 10A
Maximum voltage: AC-250V, DC-30V
Output type: relay output
Type of control: fully automatic
Works with reed sensors - float sensors
Size: 6 x 3.8 cm / 2.36 x 1.5 inch
Mounting: M3 screws