Abstract: A measuring apparatus for incrementally measuring the wheel inclination angles of vehicle wheels with the arrangement employing data emitters for converting the inclination angles into pulses proportional to such distances or angles. Each of the data emitters includes a movable scanning pin operatively connected with a photo-electric system cooperating with light rasters to generate pulses indicative of the measured angle of inclination. The generated pulses are fed to a pulse store device and/or an indicator device to provide an automatic visual indication of the camber, toe-in, caster and lock angle of the vehicle wheels.