New technology: using low-power wide area network LPWAN narrowband IoT communication technology NB IoT for data transmission, with characteristics such as wide coverage, large connectivity, and low power consumption;

● High security: Using NB IoT communication module, SMT SIM card, and utilizing the operator's public network for communication transmission, it is safe and reliable;

● Pay as you scan: WeChat code scanning, Alipay code scanning and other functions are supported;

● Data upload: It has the function of custom periodic data reporting, key triggering, and power on data reporting;

● Fault reporting: When magnetic interference, valve, abnormal high flow, low power and other abnormalities occur, the valve will be automatically closed and the fault information will be actively reported to the management system for easy management;

Remote valve control: The valve can be remotely controlled, and in case of emergencies or malicious overdue customers, the valve can be closed remotely;

● Payment and recharging: self-service payment and recharging can be conducted through mobile terminal APP or WeChat official account;

Dual channel recharge: supports two gas purchase recharge methods: IC card recharge and wireless remote recharge;

No need for gas shut-off valve: Two levels of n-day no need for gas shut-off valve function can be set to ensure safe gas use;

● Optional features: Temperature or temperature compensation and tiered billing functions can be added according to requirements;