The ESEE Compass Cards are a set of seven cards measuring 2.13 by 4.25 inches, with three instruction cards and four clear map overlays.
The clear cards lay over a map to read grid locations, azimuths and distance directly, which is faster and less error-prone than working them out with a protractor and a ruler. That is land navigation done the military way, and the instruction cards cover the method rather than assuming it is already known.
A card set works when a phone does not, which is the whole point. No battery, no signal and no screen to fail in the cold or the wet. At the size of a few stacked business cards the set lives in a map case or a pocket alongside the map it works with. Explore more navigation compasses.
- Four clear overlays for grids, azimuths and distance
- Three instruction cards covering the method
- No battery, signal or screen to fail
- 2.13 by 4.25 inches, fits a map case
