Description: Can use for Water heaters, credit card machines, water vending machine, flow measurement device. Lght weight, small size, easy to install. Durable wearable,Long lasting,High and low temperature can be used,more safe Seal Ring with the upper and lower force structure never leaks Threaded connection: G1/2 Specification: Model: YF-B3 Working Flow Rating: 1-25L / min ± 3% Rated voltage: DC5-15V Water pressure resistance:> 1.75MPa Operating voltage range: DC5 ~ 15V Insulation resistance:> 100M? Flow pulse characteristics: ((11 * Q)Q = L / Min ± 3% Output high pulse:> DC 4.7V (input voltage DC 5V) Material: Copper Color: Gold Package Includes: 1 Piece Water Flow Sensor