Description:Our water flow sensor is of copper material, very sturdy and durable to use, it is a kind of G3/4" type water flow sensor, its um water pressure is 1.75MPa and the range of flow is from 2L/min to 45L/min. Lightweight and has compact, stable nce, low water pressure start, very easy to install and safe to use. And it can be perfectly for water heaters, water dispenser, , water vending m, coffee maker, flow measurement device, water control m and so on. Features:Made of copper material, environmental-friendly, really sturdy and durable to use.G3/4" type water flow sensor, its um water pressure is 1.75MPa, the range of flow is from 2L/min to 45L/min. wire connection: Red for positive pole, black for negative pole, yellow for .There is an d hall effect sensor that outputs an electrical with every. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry.Lightweight, reasonable, stable nce, low water pressure start, easy to install, safe to use.Can be perfectly for water heaters, water dispenser, , water vending m, coffee maker, flow measurement device, water control m and so on.Specifications:Condition: 100% Material: Copper Color: Shown as pictureType: G3/4"(External Thread Diameter)Water Quality Requirement: ≤60℃Start Flow Range: 1.5L/minFlow Range: 2-45L/minum Water Pressure: 1.75MPaWorking Voltage Range: DC4.5-18VMax t: 10mAInsulation resistance:＞100MΩElectrical Strength: AC500V, 50HzCopper Switch Length: Approx. 45mm / 1.8inchWire Length: Approx. 35cm / 13.8inchWeight: Approx. 110gPackage Included:1 x Water Flow Switch