CollarEdge 38mm and 50mm¶
current availability: catalog
Resin-encapsulated collar trackers on BioThane belting for medium and large predators; one or two D-cells.
Typical use: cheetah, leopard, hyena, lion, wild dog.
Variants: 38mm-1D (1 D-cell; 17 Ah); 38mm-2D (2 D-cells; 34 Ah); 50mm-2D (2 D-cells; 34 Ah); HippoEdge 38mm-1D (neoprene; pygmy hippo).
Specifications¶
| Positioning | u-blox GNSS, LR11xx GNSS, Wi-Fi scan, BLE scan |
| Connectivity | LoRaWAN, BLE, VHF (optional external antenna) |
| Sensors | accelerometer, temperature, reed switch |
| Power | primary / 1x or 2x Saft LS33600 (D-cell) / 17.0 Ah |
| Dimensions | 230 x 180 x 51 mm |
| Weight | — |
| Enclosure | BioThane collar, polyurethane resin |
Firmware¶
| Firmware board | collaredge_nrf52840 |
| Tracker type | collaredge_tracker (value 8) |
| Hardware revisions supported | 1.0.0, 1.1.0-1.3.0, 1.4.0-1.7.0 |
| Latest firmware | v8.0.1 (2026-09-24) |
Runs the shared OpenCollar Edge firmware; see supported hardware for revision groups and the releases page for downloads.
Repositories¶
- Documentation, BOM and assembly: CollarEdge 38mm and 50mm: documentation, BOM, assembly
- Electronics: CollarEdge electronics (collaredge_nrf52840) (latest: v1.7.1 (2025-12-05))
- Mechanics: CollarEdge 38mm and 50mm mechanics (latest: v1.2.0 (2026-03-17))
Tools¶
- Configure and update: Smart Parks Connect ShortRange (BLE web app), Smart Parks Connect App (Android)
- Decode data: Raw logs decoder
External links¶
Note
Dimensions are for the 38mm collar; the 50mm collar is 310 x 260 x 92 mm. The electronics unit alone is 101 x 69 x 51 mm (38mm) or 107 x 64 x 92 mm (50mm).