1.Water Flow Switch adopts a Magnetic Reed Switch, G1/2 male threaded ports each end. Equipped with filter water entry.2.Mainly used for water heater, boiler, coffee machines, hot card machines, steam equipment, water system, selling self-help water systems, water treatment equipment, cooling systems, mechanical equipment, instrumentation.3. Wire connection: red for positive, black for negative, yellow for pulse signal. Another for temperature signal(3950K 50K). Specifications:Product Name: Water Flow SensorMaterial: Brass(Shell)Size: 66mm x 24mm x 29mm / 2.6" x 0.94" x 1.14"(L*W*H)Cable Length: 300mm / 11.81"; 150mm / 5.91" Liquid Temperature: Not More Than 60CRated Voltage: DC 5VMax Current: 10mA(DC 5V)Maximum water pressure: 1.
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