Scalex Digital MapWheel

Measure maps the fast, accurate way with the Scalex MapWheel™. Measures in miles, kilometers and nautical miles. 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.
Features:
- Rugged roller wheel for accurate measurement
- Audible beeper indicates wheel motion
- Easy-to-read display shows length, count and scale factor simultaneously
- COUNT and ADD button (far side)
- Simple controls
- 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 you count 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 battery life
- Low battery indicator
- One year limited warranty