The Suunto Optical Compass is far and away the highest quality, most accurate and easiest to use. This is the same as I have used for the last 30 years Surveying and Engineering all over the World. The amazing thing is that it currently cost the same as when I purchased mine. You hold it up to your right eye and look at the target with your left eye. Your brain superimposes the compass reading directly over your target. It's accurate to a half degree or less.
https://www.thecompassstore.com/51kb14360r.html
