Features 1、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. 2、With a small, simple wiring, low power consumption, high switching capacity, interference is strong, functional stability characteristics. 3、Automatically open when you can stably pool (water tower) water pump (solenoid) pumping,automatically stops the pump (solenoid) when full of water. 4、Local flooding can also be used for automatic rain drainage, such as garages, basements, etc 5、The product does not need to buy another probe, using household wiring can replace probe. 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 Package List