Water Flow Meter, Grooved.

1) Size: DN50-DN300
2) Nominal Pressure: 1.6MPa
3) Material: ductile cast iron
4) Measuring Medium: water and other liquids
5) Measuring Method: Ultrasonic
6) Applicable Temperature: ambient temperature -40 ℃ ~ 80 ℃ (LCD display -25 ℃ ~ 60 ℃)
7) Power Supply: single 3.6V lithium battery can work for 6 years.