It is a digital compass. This one is from before the time GPS was build-in every freakin device. So before using it one must calibrate it. That made me a bit sceptic. But I calibrated it and got out my old fashioned compass and I don't see a real big difference.
Some features:
- Fix to certain grade and see how much you are deviate.
- Use the opposite grade so you can walk exactly back.
- Backlight.
Dries
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