4-inch digital slave clock

1. Display colors: Hours and minutes are displayed in 4-inch red, seconds in 1.5-inch white, and the colon displays red or green.

2. Built-in TCP/IP and NTP protocols, with RJ45 communication interface;

3. Supports three different time synchronization methods: (1) NTP time server synchronization; (2) Time synchronization via time and information management system software; (3) Supports both NTP time server and time and information management system software synchronization;

4. Power on/off function: Both the remote control and management software can operate the display's power on/off. The remote control can directly control the display's power state, while the management software can schedule power on/off times, allowing the display to automatically execute these functions.

5. Countdown function: During countdown, normal time and the countdown start time are displayed.

6. Capable of operating independently without the management system software, synchronizing time with the server on its own.

7. Ethernet configuration function: Using dedicated software, customers can configure network parameters for a single clock or multiple clocks uniformly. All clocks can be queried on the software platform for details such as clock size, display mode, and product category.

8. Seconds display control function: Both the remote control and management software can toggle the seconds display. When seconds are displayed, the colon between hours and minutes does not blink with the seconds; when seconds are hidden, the colon blinks in sync with the seconds.

9. Built-in temperature-compensated clock: The clock continues to keep time normally during external power outages and automatically recalibrates once the network is restored. Error is less than 0.05 seconds per day.

10. Supports cross-network time synchronization function.

11. NTP network time synchronization status indicator: Under normal synchronization, the colon between hours and minutes displays red; if synchronization is lost for an extended period, the colon turns green.

12. The leading digit of the hour can be configured to display "0" before 10:00 or remain hidden. The colon between hours and minutes can be configured to blink every second or remain constantly lit.

13. The frame is made of cold-rolled steel with a one-piece molding process and an acrylic panel, offering an elegant and sleek appearance. The clock face is treated with anti-glare coating to prevent reflections under fluorescent lighting. All components are highly reliable and long-lasting, designed and manufactured for maintenance-free operation.

14. 24-hour format, displaying hours:minutes:seconds or hours:minutes, with the option to toggle seconds display. Hours and minutes use 4-inch digital tubes, while seconds use 1.5-inch digital tubes.

15. Brightness ≥ 600 cd/m²; brightness adjustment ≥ 3 levels.

16. Viewing distance: 3m to 50m.

17. Maximum power consumption ≤ 40W.

18. Environmental requirements: -15℃ to +55℃, 10% to 95% RH.

19. Frame dimensions: 490*190*44mm (length*width*thickness).

20. Supports AC220V power supply or PoE (Power over Ethernet).