The PlanWheel XLU3 is the perfect plan wheel tool for taking 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. Portable plan wheel, uses two AAA batteries (included). Connects to your computer with optional Interface Kit.
SPECIFICATIONS:
Accuracy: +- 0.25%
Resolution: 1.0mm (0.4")
Batteries: 2 x AAA(included)