1. Time Synchronization Method: NTP, WiFi 2.4G or 5G, LTE-4G, LoRa wireless communication, etc. (choose one);
2. Clock Accuracy: Operating time accuracy: 20ms;
3. Power Supply Method: AC220V, POE, DC6V (choose one);
4. Timekeeping Method: Temperature-compensated crystal oscillator timekeeping, RTC without time source has an annual error of less than 1 minute;
5. Display Method: Year, month, day, hour, minute, second, day of the week, temperature, lunar calendar;
6. Management Method: Operating status, time synchronization status, communication status, power on/off, self-reset, countdown, time zone, brightness, time synchronization cycle, network parameters;
7. Equipped with identity authentication function;
8. Fully domestically designed, with MCU, network communication chips, and components all domestically produced;
9. Hour, minute, and second display size: 3 inches;
10. Display Color: Red;
11. Frame Material: 304 stainless steel frame, glass panel;
12. Protection Rating: IP54;
13. Corrosion Resistance Rating: WF1;
14. Installation Method: Ceiling mount, wall mount, wall recessed, production line workstation recessed;
15. Applications: Chemical polluted plants, explosion-proof plants, medical plants, biological research institutes.