Frequency: F = 4.8 * Q (L / Min)voltage output of the premium: 3.5-24VDCa liter of water flow after pulse output 288 Flow range: 1-60L/minIt can be used for:Apply to food, credit card machines, water vending machines, and other flow measurement devicesLowest rated operating voltage: DC4.5The maximum operating current: 15 mA (DC 5V)Operating voltage range: DC 5 ~ 24 V Load capacity: Less than or equal to10 mA (DC 5V)Operating temperature range: Less than or equal to80 Operating humidity: 35% ~ 90% RH (no condensation state)Allow pressure less pressure: 1.75Mpa Storage temperature: -25 ~ + 80 Storage humidity: 25% ~ 95% RH Colour: Black Material: ABS Package Included:1* DN25 Water Flow SensorOnly the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.