Prepaid smart card cold water meter features:

1. The battery compartment opening is located above the water meter, making it easy to replace the battery without disassembling the water meter.

2. Fully sealed, with multiple moisture-proof and waterproof treatments, the circuit part is completely sealed and can work in water immersed or wet environments.

3. Adopting high-capacity chips, reducing peripheral circuits, high reliability, and low failure rate.

4. High quality valves, flexible opening and closing, strong reliability, and long working life.

5. Dual display, with word wheel and LCD dual display, higher reliability and * * performance.

6. High precision and sensitivity, both accuracy (error) and sensitivity (starting flow rate) are twice the standard.

7. New environmentally friendly materials: The watch case is made of polymer alloy material, which has high strength and good toughness,. More in line with environmental and hygiene requirements.

8. The static working current is zero or close to zero, resulting in a long battery life.

9. Automatic switch: recharge and open the valve to use water, close the valve without value, and automatically switch the valve on and off; Prepaid water fees do not require household meter reading or charging.

10. Encryption: One table (one household), one card,

Automatically generate and recognize IC card passwords, with one-to-one correspondence between cards and tables, and cannot be interchanged.

11. Anti magnetic interference: When subjected to magnetic interference, the valve automatically closes and opens automatically after swiping the card.

12. Warning: When the remaining water volume is 2m3 (set according to user requirements), the valve will be prompted to close, reminding users to purchase water as soon as possible; At this point, swipe the card to open the valve and continue using water.

13. Low battery warning: When the battery is low, the LCD screen displays low battery and prompts to replace the battery in a timely manner.

14. Low power shut-off valve: If the battery is not replaced in a timely manner after the low power warning, the valve will close and the battery must be replaced before opening the valve to supply water.

15. LCD display: The LCD screen displays information such as cumulative usage, remaining water level, valve switch, power status, fault codes, etc.

16. Anti clogging function: The control program automatically cleans the valve to maintain its flexibility.

17. Data write back: User cards can write back water and electricity meter data for easy management.