PlanWheel SA is the perfect tool for taking digital scaled measurements from blueprints, maps and plans. Just select the built-in scale factor to match the plan and roll the PlanWheel. The measurement is displayed instantly. All the most common engineering, architectural, map and metric scales built-in. Plus, thousands of available user scales. Portable, uses two AAA batteries (included).

The PlanWheel SA is a Stand-Alone unit that cannot be interfaced with your PC!
However, the PlanWheel XLU is also available complete with the functionality and features of the the PlanWheel SA, but connects to your computer with an optional XLU-USB Interface Kit.

• 52 built-in and thousands of available user-defined scale factors.  Includes all common scales-Imperial and Metric too
  
• Calculate auto-scale factor from reduced, enlarged or odd-scale drawings
  
• Measures in kilometers, meters, centimeters, feet, yards, miles and inches
  
• Calculates square and cubic dimensions for regular areas and volumes
  
• Counter and adder buttons on probe tip let you count items or add fixed lengths as you scale
  
• Create, store and retrieve 2 user-defined scale factors
  
• Calculate auto-clear, audible tone indicates wheel movement
  
• Plus minus (+/-) mode allows user to simply back-up to deduct an over-rolled measurement
  
• Optional Hard Case ( See Scalex Protective Case )

 PlanWheel SA pdf datasheet