Polar 91039781 USB Black GPS receiver module

GPS Sensor, Distance +/-2%, Speed +/-2km/h, 2.4 GHz, micro USB, Li-Pol (500mAh), IPX7, Black, 34g The extremely small G5 GPS sensor provides accurate speed and distance measurement for a range of outdoor sports. It is light and easy to wear in the armband pocket. After training you can see your route on a map with compatible software/web service.

- Ultralight (34 g) and small (39x64x12 mm)
- Measures speed/pace and distance
- Records accurate GPS positioning data
- Easy to wear in a soft and flexible armband (26 g)
- Rechargeable (20 hour life) via micro USB