1. Retain the display of wet water meter or dry water meter to facilitate the verification and verification of the accuracy of the water meter.
2. Powered by built-in lithium battery, can be used normally for more than 6 years.
3. Adopt special electric valve, low power consumption, small pressure loss, reliable switching.
4. Display function: LCD liquid crystal is not displayed during daily work of the water meter. It is displayed when reading and writing cards, displaying water volume data, valve status, etc., to achieve the purpose of reducing lithium battery energy consumption and ensuring the service life of the card meter.
5. Parameter setting function: The management party can set the parameters such as the alarm water volume and the upper limit of recharge in the water meter according to their actual needs by purchasing water from users.
6. Alarm function: When the amount of remaining water reaches the lower limit of suffering, the valve will automatically close, and the LCD will display "close valve", prompting the user to purchase water in time. After swiping the card, the user can use the remaining water. If the remaining water volume is 0 M3, the valve closes automatically, and the user must purchase water before using it.
7. Valve closing function: The valve can automatically close the valve when the amount of water purchased by the user is used up or the battery is under pressure and the water is stolen.
8. System card recognition function: When the card other than this system is close to the water meter, the LCD will display "card error" and display the error message code.
9. The non-volatile memory is used in the water meter, the data will not be lost when the power is off, and the data can be stored for a long time.
10. Waterproof performance: all internal circuits are sealed with glue, which can work normally in a humid environment.
11. Smart card: Inductive (non-contact) radio frequency card, which has the characteristics of strong confidentiality, anti-interference, easy operation, and easy to identify. The circuit adopts industrial-grade moisture-proof and waterproof technology and anti-collision and shockproof, etc. protective device. Smart card read and write operation distance ≤50MM.
12. Integrated design, beautiful and strong, waterproof, anti-attack and anti-destruction.
