Sub-meter accuracy positioning for field crews — Bluetooth GNSS receivers, full NMEA parsing, and accuracy-enforced data capture
Professional-grade GNSS positioning integrated end-to-end into field data collection workflows
Pairs with professional-grade external GNSS receivers over Bluetooth Classic and Bluetooth LE. Tested and supported devices include Trimble R1/R2, Eos Arrow 100/200/Gold, Bad Elf GNSS Pro+, Juniper Systems Geode, and Leica Zeno. Automatic reconnect on signal loss.
Full sentence-level parsing of NMEA 0183 streams from any receiver. Supports GGA (fix data & altitude), GSA (DOP & active satellites), GSV (satellites in view), RMC (recommended minimum), VTG (velocity over ground), and proprietary PTNL sentences from Trimble.
Every captured feature, photo, and form record is stamped with full quality metadata: HDOP, VDOP, PDOP, fix type (autonomous / SBAS / DGNSS / RTK float / RTK fixed), number of satellites used, and receiver-reported accuracy estimate in centimeters.
Configurable per-form or per-layer minimum accuracy gate. The app visually warns field crews when current accuracy exceeds the threshold and can optionally block capture until the required precision is achieved. Thresholds range from sub-decimeter to meter-level depending on use case.
Leverages all available GNSS constellations simultaneously: GPS (USA), GLONASS (Russia), Galileo (EU), BeiDou (China), and SBAS augmentation systems (WAAS, EGNOS, MSAS, GAGAN). More satellites mean faster fixes and better accuracy in challenging terrain.
GNSS coordinates, elevation, and accuracy are automatically filled into designated form fields the moment the user captures a point. Field crews spend zero time manually entering coordinates — the data flows directly from the receiver into the structured record.
Capture point assets, trace line features (e.g., ROW boundaries, patrol paths), and delineate polygons (e.g., treatment areas, conservation zones) directly in the field with the external GNSS receiver. Each vertex is stamped with its individual accuracy reading.
Photos and videos captured in the app are embedded with EXIF geotags using the external GNSS position rather than the device's lower-accuracy built-in GPS. Metadata includes latitude, longitude, altitude, horizontal accuracy, fix type, and timestamp at the moment of capture.
Standards, protocols, and hardware compatibility details
Tested with leading professional-grade external GNSS receivers
Sub-meter & sub-decimeter GNSS
100 / 200 / Gold GNSS receivers
Affordable sub-meter BT receiver
Rugged BT GNSS for field use
Fallback when external receiver unavailable
Any NMEA-streaming USB/OTG device
GNSS positioning feeds data across the entire platform
Connect your existing GNSS hardware or explore supported devices with a hands-on demo