MapWheel 7010009 Digital Map Measurer; 19 Built-in User Scale Factors Including All Common Map Scales; Measures in Miles, Kilometers, and Nautical Miles; Easy-to-read Liquid Crystal Display

The finest measuring device for all maps and charts, including nautical charts. Now quickly and easily measure maps at any scale. 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's scale to match the map, then roll the unit along the route you want to measure. The distance is displayed instantly. 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