Features:
1) Valve will shut down for warning when remaining credit is less than the
warning limitation, and the valve will open up when inserting the card
2) Valve will shut down when credit is used up. Then the consumer has to
purchase water again
3) Valve will periodically shut down and open up automatically to prevent rust
4) Detailed LCD display
5) Low consumption design
6) The data will be saved even if the power is cut
7) Battery life is more than 6 years
8) Low battery warning
9) Patent ball valve, low pressure loss

Specifications (cold water meter):
1) Size: 20mm (15mm)
2) Operating pressure: 1MPa
3) Pressure loss: below 0.1MPa
4) Class: B
5) Normal flow: 2.5m/h (1.5m/h)
6) Max flow: 5m/h (3m/h)
7) Max. count: 99999.9m
8) Water temperature: 0 - 40°C
9) Water quality: clean water
10) Battery life: above 6 years

Specifications (hot water meter):
1) Size: 20mm (15mm)
2) Operating pressure: 1MPa
3) Pressure loss: below 0.1MPa
4) Class: B
5) Normal flow: 2.5m/h (1.5m/h)
6) Max flow: 5m/h (3m/h)
7) Max. count: 99999.9m
8) Water temperature: 0 - 90°C
9) Water quality: clean water

10)Meter Body Material: Brass or PPO