Topcon GPS machine control system for dozer automation, UHF radio (450mhz), GPS and Glonass satellites, full Auto. System includes mag box, monitor, slope sensor, vibe pole, coil cable, UHF Radio base and antenna, carrying case. This system was on a Cat D6 and works great. You can go full auto or indicate, set slopes etc.... Purchased this system new about 6 years ago, awesome system, durable, well built, no problems.