Our Plan Measuring Wheel measures plans fast & accurately. The PlanWheel SA2 is the perfect tool for taking scaled measurements from blueprints, plans and maps. The Scalex Plan Wheel is easy to use: 1 Select the scale factor to match your plans. 2 Roll the wheel on the plans and read the measurement. Scale factor. GOO. The planwheel SA2 by Scalex is an excellent plan wheel for use with blueprints, architectural plans, engineering plans or any set of plans or drawings whereScalex PlanWheel SA2 - This stand alone version offers all the same great features of the PlanWheel XLU Available with English or French Instructions Inclus 2 piles AAA et les instructions. Garantie limitée d'un an. SCALEX. CODE À BARRES. U.