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. MapWheel measures in miles, kilometers, and nautical miles. Portable, uses two AAA batteries (included).

Measure maps the fast, accurate way with the Scalex MapWheel™. Here is the perfect tool specifically for taking scaled measurements from maps. Just select the built-in scale factor to match the map and roll the MapWheel. The measurement is displayed instantly.

• 19 built-in user scale factors including all common
  map scales
• Measures in miles, kilometers and nautical miles
• Counter and adder buttons on probe tip let youcount stops made or add fixed destination lengths as you measure
• Calculate auto-scale factor from reduced, enlarged or odd-scale maps
• Create, store and retrieve user scale factors
• Clear, audible tone indicates wheel movement
• Easy-to-read liquid crystal display shows length, count and scale factor simultaneously
• Automatic shut-off assures long batttery life
• Low battery indicator
• One year limited warranty