Feature:1. The flow switch is a sensor device that converts water flow into a switch-type electrical signal when a certain flow is reached 2. The flow switch consists of magnetic core, return spring, wrought copper or polycarbon housing and sensor 3. The shell is made of H58 forged copper or polycarbon, the magnetic core is made of NdFeB permanent magnet material, and the sensor magnetic control switch is an imported medium power component 4. The inlet and outlet ports are G1 / 2in standard pipe threads, which is convenient for connection 5. The flow switch has the advantages of high sensitivity and strong durability.