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| GNSS | GNSS board | Trimble BD990 |
| Channel | 336 | |
| Update rate | 5Hz (Standard to 5 Hz, can pay to activate 50 Hz) | |
| Static Accuracy | Horizon: ±( 2.5+1*10"D) mm; Vertical: ±( 5+1*10"D) mm | |
| RTK Accuracy | Horizon: ±( 8+1*10"D) mm; Vertical: ±( 15+1*10"D) mm | |
| Power | Battery | Dual batteries, 7.2V/3400mAh*2 (Works at least 10 hours) |
| Input | 9-28V DC | |
| System | OS / Memory | Linux / Internal 8G; TF extended, Max≥32G |
| Bluetooth / Wi-Fi | Bluetooth V2.1+EDR/ V4.1 Dual Mode; 802.11 b/g/n | |
| Internal UHF | TRM 101; Power 1W, Frequency 410-470 MHz | |
| Tilt Survey | Support Electric Bubble, Support tilt survey | |
| Physical | Dimensions | 157mm * 76mm |
| Weight | 1.2KGS with 2 batteries inside | |
| Environment | Temperature | Work: -30ºC~+65ºC; Stock: -40ºC~+80ºC |
| Protection | IP67 Waterproof and Dustproof | |
| Shock | Withstand 2 meters pole drop |