Item Type: Water Flow Sensor Switch _x000D_ Model: fs-1/4-1_x000D_ Connecting Thread Size: Male thread G1/4in_x000D_ Material: PP_x000D_ Working Voltage: DC0-110V_x000D_ Working Current: 0.5-1A_x000D_ Maximum Withstand Voltage: 0.2Mpa_x000D_ Maximum Temperature Resistance: 85_x000D_ Medium Specific Gravity: 0.7_x000D_ Working Principle: When there is water flowing in the water flow switch, the magnetic core in the water flow switch is pushed by the water flow to cause displacement, and the magnetic core displacement drives the magnetic source to generate a magnetic control action so that the water flow switch outputs a "on" signal. This signal is input to the device control system, and the control system is used to realize the control function. When the water flow is less than the starting flow, the water flow switch outputs an "off" signal. The control system produces the opposite control effect