Features: - 100% Brand New and High Quality - This product 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. - With a small, simple wiring, low power consumption, high switching capacity, interference is strong, functional stability characteristics. - Automatically open when you can stably pool (water tower) water pump (solenoid) pumping,automatically stops the pump (solenoid) when full of water. - Local flooding can also be used for automatic rain drainage, such as garages, basements, etc Board Size: 7cm x 4cm(L*W) Material: Electronic Components The product does not need to buy another probe, using household wiring can replace probe Note: - The probe is a wire mesh shell with a plastic buckle up the thread, with household wires can be directly induced, strip off the head of wire about 2cm, making it bare to direct induction-Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Another: The product does not include line (probe) - Lighting, display and other factors may cause COLOR SHADING, please comprehensive pictures and text descriptions to determine! Package Includes: 1 x Liquid Level Controller Sensor