From OpenStreetMap Wiki
- Note: see much more details on the German page...
Mainnav MG-950d is a waterproof USB and Bluetooth Data-Logger, built as a tachometer for cyclists. The device shows speed, altitude, time, distance, time since start, distance since start, maxsspeed, average speed.
|GNSS|| 20 channels|
chipset: SiRFStar III
|Memory||Internal: (130;000 max logging).|