What Is the FJD Trion P1?
The FJD Trion P1 is a compact, SLAM-based handheld LiDAR scanner designed for quick grab-and-go 3D reality capture across indoor, outdoor, and underground environments.
It uses Simultaneous Localisation and Mapping (SLAM) to continuously track its position as you walk through a space, building a real-time 3D point cloud. Unlike static scanners, it requires no targets, tripod setup, or station-by-station workflow. It connects to a mobile device via the Trion Scan app for real-time visualisation.
Key Specifications
| Spec | Detail | | --- | --- | | Weight | 1.05–1.15 kg | | Relative Accuracy | Up to 2mm (experimental) / ~2cm typical | | Scanning Range | 40m @ 10% reflectivity; 70m @ 80% reflectivity | | LiDAR FOV | 360° × 59° | | Points Per Second | 200,000 pts/s | | Camera | 5760 × 2880 @ 30fps, 180° FOV | | Battery Life | ~2 hours (hot-swappable) | | Storage | 512 GB internal | | IP Rating | IP54 | | Data Formats | .las, .pcd, .pts, .ply |
Accuracy in Practice
The headline figure of 2mm relative accuracy is under controlled experimental conditions. Real-world performance is typically ~2cm relative accuracy — good internal consistency, but absolute georeferenced accuracy depends on loop closures and optional GNSS/RTK integration.
For construction surveys and BIM preparation, the 2cm figure is generally acceptable for as-built documentation and clash detection. It is not suitable where mm-level tolerances or formal control network accuracy is required.
When to Use the Trion P1
The P1 excels where speed and accessibility beat pinpoint accuracy:
- As-built surveys of complex buildings, plant rooms, or MEP corridors
- BIM model verification and existing condition capture
- Underground or confined spaces (tunnels, basements, risers)
- Forensic documentation and insurance capture
- Topographic surveys of sites with vegetation or irregular terrain
- Heritage/architectural recording of intricate structures
- Progress monitoring — quick walkthrough scans at intervals
UK Price and Providers
| Item | Cost (ex VAT) | | --- | --- | | FJD Trion P1 purchase (UK retail) | £9,500 | | Hire options | Available through SEP Ltd |
UK Providers: SEP Ltd (sepltd.com) — dedicated FJDynamics reseller, buy and hire. Drone Service Solutions UK — UK stockist, construction/surveying focus.
Post-processing in FJD's Trion Model software or export to Autodesk ReCap, CloudCompare, or Leica Cyclone for BIM workflows.
Frequently Asked Questions
Q: How accurate is the FJD Trion P1?
Real-world accuracy is approximately 2cm relative accuracy. The 2mm figure applies only under controlled experimental conditions. For as-built documentation and clash detection, 2cm accuracy is generally acceptable.
Q: What is the difference between SLAM and tripod scanning?
SLAM scanners (like the Trion P1) track position continuously as you walk — no setup, no targets. Tripod scanners take static measurements from known positions — higher accuracy but slower. Use SLAM for speed; use tripod for precision.
Q: How long does the Trion P1 battery last?
Approximately 2 hours of continuous scanning with hot-swappable batteries so you can swap without interrupting the scan.
Q: What data formats does the Trion P1 export?
Exports to .las, .pcd, .pts, and .ply formats — compatible with Autodesk ReCap, CloudCompare, Leica Cyclone, and all major BIM/CAD software.