
Secondhand Surveying Instrument G1 GPS Rtk Systems Gnss Receiver Rover and Base. High Precision Positioning: RTK accuracy: Horizontal 8mm+1ppm, Vertical 15mm+1ppm for professional surveying needs. Multi-Constellation Support: Tracks GPS, GLONASS, BDS, GALILEO, SBAS, QZSS with up to 965 optional channels. Tilt Survey Function: Built-in IMU allows surveying without centering, correcting coordinates automatically up to 30 degrees. Robust IP68 Design: Magnesium aluminum alloy shell, waterproof to 1m, dustproof, withstands 2m drop onto cement. Versatile Connectivity: Dual-mode Bluetooth 4.0/2.1, NFC pairing, Wi-Fi hotspot, and 4G LTE modem support. Long Battery Life: Removable 7.4V 3400mAh lithium-ion battery with optional 4-battery power package. 1 Year Warranty: All products undergo strict quality checks and come with a comprehensive one-year warranty.