["G1/2 1-30L/min DC5V Water Flow Sensor Flowmeter Hall Flow Sensor Water Control 1.75MPa Counter Switch For Arduino\r\nbrand new and high quality\r\n\r\nFeatures:\r\nThis is a small zise product that easy to install.\r\nMade of good material, the product is precise and durable, no power consumption.\r\nSuitable for gas water heater, electric water heater, washer, wall-hanging stove, electromagnetic water heater,\r\nintelligent IC water meter,cooling system, circulatory system, heating equipment,etc.\r\nThree lines: red is positive, black is negative, yellow is pulse signal.\r\n\r\nSpecification:\r\nTest range: 1~30L/min(m3/h)\r\nInstantaneous flow pulse characteristics:F=[10Q]±10％, F means instantaneous pulse value(Hz),Q means instant flow\r\nMax. Working current: 15mA\r\nInsulativity: insulation resistance＞100M Ohm\r\nElectric strength: AC 500V, 50Hz\r\nUse voltage: for DC 5V\r\nFit media: water\r\nWorking pressure: 1.75MPa\r\nfor Protection grade: high\r\nlinearity: 0.01(%F.S.)\r\nOutput signal: moder\r\nHysteresis: 0.01(%F.S.)\r\nMaterial: mixtures\r\nMechanical properties: magnetic material\r\nDimensions: 37x58x37mm/1.46x2.28x1.46inch\r\nConnenctor outer diameter: G1/2\"\r\nColor: Black\r\nQuantity: 1 Pc\r\n\r\nPackage includes:\r\n1 x Water Flow Sensor Flowmeter"]