AllSync IQ Ethernet master clock. 2 clock circuits, 6 signal circuits. Remotely manage all equipment from convenience of computer and control major brand systems with AllSync IQ wired master clock. Perfect replacement for failing master clock and works with existing secondary clocks. AllSync IQ wired master clock provides synchronized control of secondary clocks, bell signals and electrical circuits. Programming up to 99 schedules and 9,999 events is easy with 16-button keypad or remote connect web interface. Will never need to adjust for time changes, because AllSync IQ wired master clock automatically adjusts for daylight saving time and leap year. Plus, battery backup keeps time without external power and retains programmed data.