Model TR-3, GPS Time Reference

RTC GPS receiver assembly mounts to top of traffic signal cabinet and plugs into the D89 connector on the TR-3.
RTC GPS receiver locks onto 3 satellites for ultra-accurate time reference.
TR-3 provides a contact closure or optional RS-232 output to set the exact time-of-day in 170, 2070 or NEMA controllers.
Programming set on circuit board, no external programmers required.
16-character, alphanumeric Liquid Crystal Display (LCD) displays Acquiring Satellites, the Day-of-Week and Time-of-Day when locked.