Liquid Level Controller Water Level Detection Sensor ModuleThe product is based on the detection tank (water tower) level to control high current relay to achieve control.Specification:Size: 6 x 5cm \/ 2.3 x 2 inchOperating voltage: 9-12VRelay: 10AFeatures:It is small、 simple wiring、 low power consumption、 high switching capacity、 strong anti-interference、 features high stability.When stably pool (water tower) water pump the water、 it can automatically open the pump automatically stops pumping to full.Packing included:1 x Water level switch sensor controller (without Stripline\/probe)