XH-M203 water level controller automatic water level controller water level switch level water pump controllerSpecifications:Model: XH-M203Working voltage: AC/DC12VOutput capacity: 10AOutput type: relay outputControl type: full automaticSize: 6x3.8cm/2.36x1.50inchInstallation: M3 screw hole Applications: When the water level is higher than the upper line, it will stop to add water automatically, no need for manual management, full automatic. Easy installation, and simple to operate. Widely used in water conservancy project, water tower, water bucket, water tank, water pond, etc