MapWheel provide a simple, fast and accurate way to measure distances on maps,whether in straight lines or along curves. Just set the Map Wheel scale to match the map, then roll the unit along the route you want to measure. The distance is displayed instantly. MapWheel measures in statute miles, kilometers, and nautical miles. Portable, uses two AAA batteries (included).
- 19 built in scale factors
- Measurers in miles, kilometers and nautical miles
- Create, store and retreive user scale factors
- Automatic shut off
- One year limited warranty