LED часы

Indoor LED clock display mast features: Many clocks networking available for synchronization (Max 128 clocks)Red, Green, Blue, Orange LED displays available for optionsInside backup battery is able to keep time accurate when outside power failsNormal specifiactions: Daily errors: less than 2 seconds Time format options: 12/24 hour format Power supply: DC 12 18 V, 2A Ambient Temperature: -10 50 C; 0 95% relative humidity; Communication distance: 1000m (for synchronization) Two holes in spacing of 12 inches for wall mounting Overall dimensions: 460*160*50mm Power consumption: less than 4 Watt; Net weight: 2.5Kg;