Features Premium Material: Our water level controller is made of high-quality PCB board eletronic component materials, excellent performance, easy wiring, and long service life. Fully Functioning: This water level sensor module is made in small size, simple wiring, low power consumption, high switching capacity, interference is strong, functional stability characteristics. water pumping, filling and draining, stable realization of water pump when the pool (water tower) is short of water, and automatically stops when it is full. Full Functioning: Water level sensor controller, supports automatic Working Principle: This liquid level sensor is based on the actual needs of the family factories and pumping and the detection of the pool (water tower) to control the water level to achieve control. Wide Applications: This liquid level switch module can be used in pond water tank, garage, basement flooding rains place where automatic drainage, etc. Specification: Item Type: Water Level Controller Module Material: PCB Board Eletronic Component Voltage: 12VDC Charging Voltage: AC <250V, DC <30V Charging Power: 10A Size: Approx. 60x50x22mm / 2.4x2.0x0.9in Package List:1 x Water Level Controller Module Note:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List 1 x Water Level Controller Module