Features: POM (polyformaldehyde) food grade material, eco-friendly plastic, small, flexible and functional. Inlet inlet intubation design and outlet tube, easy connection and operation. Small size, light weight, four-way self-assembly, easy to installHigh flow accuracy, good reliability and long service lifeComply with safety standards, Rohs, FDA requirements Application: Boiler, washing machine, boiler, electromagnetic boiler, water dispenser, water filter, R.O. machine, U.F. machine, coffee machine, water machine, water machine control, water control machine, water control machine, beer machine, beauty equipment, shower equipment, electrolytic water machine, power engineering, heat pump, IC meter, steam equipment, irrigation equipment, water system, campus card self-service sale (sale) water machine, washing machine, automatic washing equipment, water treatment equipment, water dispensing equipment, cooling system, circulation system, intelligent toilet (toilet), bidet, for mechanical equipment, heating equipment, pharmaceutical equipment (means) etc. Specification:Calculation Formula: F(Hz)= 76xflow(Q)(l/min)Flow Range: 75ml-570ml/minMeasurement Accuracy: +/- 3.0%Temperature Range: -10 to 65°C Pressure Range: -10 to 0.3 Bar at 20°cSupply Voltage: +3.8 to +20 VDC Signal Connection: NPN Transistor Open CollectorSignal Voltage: VDC GND Connection Voltage: PANCON MAX-CON 156MLSSutter Voltage: Square WaveDuty Cycle: - 50%Rated Voltage and Current: DC5V, not more than 8mA Output voltage: (rated: DC 5V); High level 4.5V and above; Low level 0.5V and below Pulse output duty cycle: 50+-10% Insulation resistance: 100M ohms and above Tightness: seal all holes and fill with 0.8mpa water, after 1 minute, no leakage and deformation. Working Pressure: Below 0.8mpa Electrical Strength: AC500V 50Hz Material: Food Grade POM (Polyformaldehyde) Dimensions: 56x50x3 5mm/2.2x1.97x1.38inch Color: Black Quantity: 1 PcNote: 1. When the magnetic material is close to the sensor, its characteristics may vary.2. To avoid particle contamination, the sensor must be installed after the filter.3. The installation of the flow sensor must avoid strong vibration and ambient vibration so as not to affect the measurement accuracy of the sensor. Package Included:1 x Volumetric Coffee Flow Meter