The LAR100 is a fully automatic self-leveling, rotating laser kit with receiver for indoor and outdoor applications. It has a 980-foot-diameter range and an accuracy of 1/8 inch at 100 feet. Other features include remote control, an out-of-level shut-off function, and horizontal slope adjustments up to 5 degrees. Stabila, 800-869-7460. www.stabila.com.