Measure the datum point or correcting points accurately with the AdirPro Monitoring Prism Sheet with Magnetic Target. With a 360-degree rotation, this prism has a smooth and stable movement due to the integrated metal and PVC material washers. This AdirPro monitoring prism has a sheet size of 47 x 47 mm, a measuring range of up to 984 feet (300m), and a prism constant of 0 mm. Using a strong magnetic material, it can be attached to any metal structure without causing damage. Please note that the prism sticker might not adhere to textured or oily surfaces.
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