Features Relay Output: The output type of this controller is relay output, the output performance of the circuit board is stable and reliable. Automatic Control: Adopt automatic control technology, can automatically detect and stop adding water when the water level is higher than the line, without manual management, convenient and practical. High Performance: The controller has low power consumption, large switching capacity, strong anti interference ability, features high working performance. Easy Installation and Operation: The controller has standard mounting hole, easy and convenient to install, simple to operate, can be used for long time. Wide Application: The controller board is widely used in water conservancy project, water tower, bucket, water tank, garage, basement and other places for automatic drainage. Specification: Item Type: Automatic Water Level Controller Material: PCB Voltage: 9-12V Usage: Water level controller Output Type: Relay output Control Type: Fully Automatic Output Capacity: 10A Mounting Hole: M3 screw hole Application: When the water level is higher than the line, it will automatically stop adding water without manual management, fully automatic. Easy installation and simple operation. Widely used in water conservancy projects, water towers, buckets, water tanks, etc. Package List:1 x Automatic Water Level Controller Package List 1 x Automatic Water Level Controller