led master & slave clock

1, Overall dimension: 470*185*55mm

2, 4 digital display,digital high 4"

3, static state drive,display no dithering

4, Clock,countup, countdown funtion

5, Time formate option: 12/24 hours

6,Countdown and countup range: 0~100 minutes

7. With remote control and buttons for time adjust.

8. With cell battery for time memory when no outside power inputs

9,Operational environment:temperature -10C~50C,relative humidity 0~95%RH

10, Power source:AC110-250V

led master clock syncs with radio signal transmitted by local time station, or with GPS signal,  slave clock then is sychronized with master clock via the connect of RS485.