Fuel Level Sensors, Level Switch manufacturer / supplier in China, offering G1/2" Threaded-in Mounted Brass Water Flow Switch with 1L/Min for, 1L/Min Nylon Material Hall Flow Meter Pump Switch with Pulse Signal for Water Heaters/Garden Irrigation, PP Water Level Switch for High-Efficiency Air Conditioning / Pure Water / Vaporator Product / Pure Water Generation and so on.