Datum Inc. bc632d L.E.D. Clock Display Unit

Datum Inc. bc632d L.E.D. Clock Display Unit. Good condition. With power supply. Unit powers on. Shows model number, Test data, then: UTC HH:MM:SS. No further testing performed. No manual. As shown.

From Datum:

Real time clock operation W/millisecond precision; wall mounted; reads serial time code signals; digitally synchronizes multiple displays; intended for indoor use only.