Description: Water flow switch is a very important part in the instant water heater. When there is a certain water flow through inlet, electric circuits is connected and water heater begin to heat. When the water flow stops, the water heater stops working. Magnetic type water flow switch controls switching on and off through the magnet, which is safe and reliable. Features: Design products adopting magnet repulsion instead of springs, safe and reliable. Permanent magnet filter removes impurities. Water is not easily scaling, which is conducive to for health. Can be used a lot of times, long service life and good reliability. Used in the instantaneous electric water heater, can save electricity power. Specifications: Model: EFS-04P Pipe Thread Size: G1/2" (BSP) Color: Black Current: 3A Voltage: 220V Power: 10W Diameter: 2cm Ambient Temperature: 1C Operating Temperature: 100C Rated Pressure: 0.65Mpa Max. Pressure: 1.5Mpa Size: 5.3x2cm/2.09x0.79inch Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Switch