Topcon HiPer II (1 receiver) including all accessories and newly calibrated: Type: Survey-grade GNSS RTK receiver Channels: 72 universal channels Signals: GPS + GLONASS (L1/L2, depending on configuration) RTK Accuracy: Horizontal: ~10 mm + 1 ppm Vertical: ~15 mm + 1 ppm Communication: Built-in UHF radio, Bluetooth (some models support cellular via external modem) Data Storage: Internal memory + removable storage support Protection: IP67 (dustproof and waterproof) Battery Life: ~6–8 hours typical operation per battery Weight: ~1.2–1.3 kg with battery Operating Temp: roughly −20°C to +65°C