Fuel Level Sensors, Level Switch manufacturer / supplier in China, offering Nylon Water Control Sensor Industrial Hall Flow Switch for Boilers/Water Heaters, 1L/Min Nylon Hall Flow Meter Pump Switch with Pulse Signal - Water Control Sensor for Swimming Pool Equidment/Garden Irrigation, Dual-Float Polypropylene Water Level Switch for Various Humidifier, Dispenser, Ultrasonic Appliances, Air Purifier and so on.