1. Frame color: white; 2. Three-hand display for hour, minute, and second; 3. Built-in TCP/IP protocols, communication via Ethernet; 4. Interface: RJ45; 5. Supports background system software management; 6. Built-in temperature-compensated clock; continues normal operation during external power outage with an error of less than 0.5 seconds per day; 7. NTP time synchronization status indicator: light off when synchronized normally, light on when synchronization fails; 8. Movement material: plastic parts made of ABS and PC, metal parts made of stainless steel and nickel-iron; 9. Diameter size: 16 inches; 10. Viewing distance: 3m to 50m; 11. Maximum power consumption ≤10W; 12. Power supply: 220VAC ±10%, 50Hz; 13. Environmental requirements: -15℃ to +55℃, 10% to 96% RH;