Used Carlson BRx5 GNSS Base-Rover RTK system. CONDITION: Very Good Batteries are used but still provide plenty of run time. We offer this system 3 ways: As we received it including: (2) BRx5 receivers, (2) UHF antennas, (2) chargers, (4) batteries (1) O.P. Tribrach, (1) Rotating adapter and carry case. Or bundled with the following NEW accessories in addition to above: Tripod, 2M Pole. Complete RTK including all components in option 2 PLUS a NEW Surveyor2 data collector with SurvCE with GPS module and pole bracket. Looking for your first GPS system? At less than HALF the price of new this system will provide years of reliable service and surprising performance. System has been tested and works as expected.