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 annual error less than 1 minute without time source;
5. Display Method: Year, month, day, hour, minute, second;
6. Management Method: Working 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, second display size: 3 inches;
10. Display Color: Red;
11. Frame Material: 304 stainless steel frame, glass panel;
12. Protection Level: IP54;
13. Corrosion Resistance Level: WF1;
14. Installation Method: Ceiling mount, wall mount, wall embedding, production line workbench embedding;
15. Applications: Chemical pollution plant areas, explosion-proof plant areas, medical plant areas, biological research institutes.