Features: Rated voltage: DC5~18V, rated current: < 10mA. Flow range: 0.075~0.65L/min, accuracy: 2%. Food grade plastic is safe, colorless and non toxic. Inlet and outlet tubing intubation design, easy connection and operation. It is mainly used in water heater, coffee machine, water purifier, drinking fountain. Specifications: Material: plastic Size: approx 70x51.88mm/2.8x2in Rated voltage: DC5~18V Rated current: < 10mA Flow range: 0.075~0.65L/min Detection accuracy: 2% Temperature range: -10~ 85 Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Water Flow Sensor