HMD Halo Goniometer with US Adapter

Laser beams take the place of the plastic arms of a manual goniometer.  Using the Digital Goniometer, parallel light beams are projected across the entire limb, intersecting with landmarks on the body from which you take your measurements.  You measure from one landmark to another and it automatically calculates the angle between them. First establish the origin of the angle (first position), then rotate the Digital Goniometer to establish the second position.  It will calculate the angular difference between position one and position two and display the result in degrees on its large LCD screen.