1、The small size sensor controller has simple wiring, not only low power consumption, high switching capability, but also strong anti interference and stable function. 2、The sensor controller controls the water level according to the actual needs of the family factory and the water pumping and detection pool (water tower) to achieve control. 3、The sensor controller can stabilize the water pump (solenoid valve) of the pool (water tower), automatically open when pumping water, and automatically stop the pump (solenoid valve) when full of water. 4、The sensor controller does not need to purchase additional probes, and the probes can be replaced with household wiring. 5、This is a sensor controller that can be used in places such as pond water tanks, garages, basements and rainwater automatic drainage. Item Type: Water Level Switch Sensor Module Material: PCB Purpose: Sensor Model: YX1479 2 x PCB Board 24 x Resistance 8 x Capacitance 2 x Transistor 2 x IC Connection Accessory 2 x Relay 2 x Electrolytic Capacitor Connection Accessory 6 x Wiring Base 4 x Indicator Light