Peter Pepper syncTECH Transmitter Clocks 

The 2.4 GHz Wireless Synchronized Time System provides a multi-path mesh network for clock-to-clock transmission of synchronized time. The the transmitter clock broadcasts the time signal to all clocks once per second. Each battery-operated receiver clock transmits up to 150 feet in all directions, repeating the synchronized time signal clock-to-clock, throughout an entire facility.

2.4 GHz transmitter clocks obtain accurate U.S. time from two sources: Network Time Protocol and GPS