Compare: GNSS RTK receivers
Four receivers with the same 1408-channel RTK engine. They differ in sensors, battery and ruggedness. This table compares 4 models (Freyja, SL900, SL8 Laser RTK, SL9 SLAM RTK) using figures from the manufacturers' published datasheets. Choose "Only differences" to hide rows where every model is the same, or open a model for its full specification page.
Specifications side by side
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Rows where the models differ are marked with an orange bar. On a phone, swipe the table sideways to see every model.
| Model |  FreyjaGet Quote |  SL900Get Quote |  SL8 Laser RTKGet Quote |  SL9 SLAM RTKGet Quote |
|---|---|---|---|---|
| Use | ||||
| Best for | Everyday RTK rover, long field days | Base station and network RTK | Points you cannot reach with the pole | Working under trees, beside buildings, indoors |
| GNSS | ||||
| Channels | 1408 | 1408 | 1408 | 1408 |
| NavIC | L5 | L5 | L5 | L5 |
| RTK accuracy | H 8 mm + 1 ppm, V 15 mm + 1 ppm | H 8 mm + 1 ppm, V 15 mm + 1 ppm | H 8 mm + 1 ppm, V 15 mm + 1 ppm | H 8 mm + 1 ppm, V 15 mm + 1 ppm |
| Tilt survey | 0° to 60°, 8 mm + 0.7 mm/° | 0° to 60°, 8 mm + 0.7 mm/° | 0° to 60°, 8 mm + 0.7 mm/° | 8 mm + 0.3 mm/° |
| Extra sensors | ||||
| Laser | Not offered | Not offered | Point laser, 2 cm within 10 m | Scanner, 200,000 pts/s, 0.1 to 70 m |
| Cameras | Not offered | Not offered | Front + bottom (AR stakeout) | 3 HD + bottom (AR stakeout) |
| GNSS-denied work | Not offered | Not offered | Laser offsets | Visual and laser SLAM |
| Communication | ||||
| Cellular modem | Not offered | Built-in 4G | Built-in 4G | Built-in 4G |
| UHF radio | 0.5 to 2 W, 3 to 5 km typical | 0.5 to 2 W, 3 to 5 km typical | LoRa, 15 to 20 km | 0.5 / 1 W |
| Power | ||||
| Battery (RTK rover) | Up to 24 h | Up to 18 h, removable | Up to 20 h | Up to 4 h built-in, 10 h external |
| Physical | ||||
| Weight | ≤ 0.8 kg | 1.2 kg | 0.73 kg | 1.68 kg |
| Protection | IP68 | IP67, MIL-STD-810G | IP68, MIL-STD-810G | IP64 |
| Storage | 16 GB | 8 GB | 64 GB | 512 GB |
From the manufacturers' published datasheets. "Not offered" means the model does not have that feature.
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