Liquid Level Controller 12V Water Level Switch Sensor Automation Detection Pump Tank<br> This Water Level Detect can be used in pond water tank, garage, basement flooding rains place where automatic drainage, etc<br> This Drainage Control Circuit Board is based on the actual use of domestic factories and pumping<br> The Liquid Level Sensor is based on the detection water level of the pool to control high current relay to achieve control pumping<br> Liquid Level Controller has small, simple wiring, low power, high switching capacity, strong anti-interference function and high stability<br> Water Level Switch Sensor can steady achieve the pool automatically open the pump when lack of water, automatically stop the pump when full of water<br> color: blue<br> Size: 60*50*22mm<br> Quantity: 1pc<br> 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering.<br> 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding.<br> 3. Only the above package contents, excluding other products.<br>