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The Digital Clock units are constructed using RED colour LEDs (can be customized for any other colour) and used for outdoor locations. The professional clocks can display the same time information, synchronized by a master clock or a time server. The clock units are intelligent to cater for changing ambient light conditions. A brightness sensor is incorporated in the unit to sense the ambient light and convert the light signal to appropriate voltage signal, which is fed to electronic circuit inside the unit to control the LED driving. This features good visibility and viewing distance.
The clock has its own temperature compensated TCXO time base which allows accuracy about 0.1 sec / day between 0° to 40°C in case of synchronization loss. These Clock units are operated with 230V, 50 Hz AC (Typical) supply.