The MB500 by M&B Engineering is a digital wheel balancer designed for efficiency and precision. It features an automatic gauge for accurate measurement of wheel distance and diameter, a Sonar system for automatic detection of rim width, and a laser line to assist in the correct application of stick-on weights. The balancer is equipped with an automatic approach system, which automatically stops the wheel close to the points of application of correction weights, and an electric brake to lock the wheel in position. The MB500 is available with manual or pneumatic locking options (MB500P).