SGS828 GPS is an all in one receiver. It combines a dual-frequency GPS antenna, OEM main board, wireless Bluetooth communication module, UHF,GPRS/CDMA data link and li-ion battery into a single compact unit. The complete set of equipment can get rid of electric cable, big power source. It is very comfortable surveying with a Rover and carbon fiber pole. The base station and rover station could be exchanged. |

