["-18V 6mm Hose Barb End Water flow Sensor 75-570ml/min 3% Err for Drinking Machine Hot Water Heater Coffee Machine\nbrand new and high quality\n\nFeatures:\nFood grade POM (polyformaldehyde) material, environmental friendly material, small, flexible and functional.\nIntubation design of inlet and outlet pipe, easy connection and operation.\nSmall size, light weight, self-assembled in four directions, easy to install\nHigh flow accuracy, good reliability and long life\nCompliance with safety standards, Rohs, FDA requirements\n\nApplication:\nWater heater, washing machine, boiler, electromagnetic water heater, water dispenser, water purifier, R.O. machine, U.F. machine, coffee machine, water machine, water machine control, water control machine, beer machine, beauty equipment, shower equipment, electrolytic water machine, energy engineering, heat pump,IC meter, steam equipment, irrigation equipment, water system, campus card self-service sale (sell) water machine, washing machine, automatic washing equipment, water treatment equipment, water dispensing equipment, cooling system, circulation system, intelligent toilet (toilet), bidet, mechanical equipment, heating equipment, Pharmaceutical (agents) equipment etc.\n\nSpecification:\nCalculation Formula: F(Hz)= 76xflow rate(Q)(l/min)\nFlow range: 75ml-570ml/min\nMeasurement accuracy: +/- 3.0%\nTemperature range: -10 to 65 ° C\nPressure range: -10 to 0.3 Bar at 20°C\nPower supply voltage: +3.8 to +20 VDC\nSignal connection: NPN transistor open collector\nSignal voltage: VDC GND\nConnection terminal: PANCON MAX-CON 156MLSS\nOutput signal: square wave\nDuty cycle: ~50%\nRated voltage and current: DC5V, no more than 8mA\nOutput voltage: (rated: for DC 5V); High level 4.5V and above; low level 0.5V and below\nPulse output duty cycle: 50+-10%\nInsulation resistance: 100M Ohm and above\nTightness: Seal up all the holes, and inflate with 0.8MPa water, after 1 minute, no leakage and deformation.\nWorking Pressure: under 0.8Mpa\nElectrical Strength: AC500V 50Hz\nMaterial: Food grade POM (polyformaldehyde)\nDimensions: 56x50x35mm/2.2x1.97x1.38inch\nColor: Black\nQuantity: 1 Pc\n\nNote:\n1. When magnetic material is close with the sensor,its characteristics may vary.\n2. In order to avoid particle debris, the sensor must beinstalled after a filter.\n3. The flow sensor installation has to avoid strong vibration and shaking of the environment, so as not to affect the sensor's measurement accuracy.\n\nPackage includes:\n1 x Coffee Machine Volumetric Flow Meter"]