SELF-LEVELING cross lines to +/ - 4° and automatic out of level indication for various leveling and layout applications GREEN BEAM laser with working range upto 16m, ideal for indoor and outdoor applications. PRECISION AND ACCURACY: 100° vertical line and horizontal line, and additional 90-degree vertical line prvoide accuracy of +/ - 5 mm at 10 m, ideal for all residential applications. EASE OF USE: QuickLink wall mount support for greater flexibility and versatility when aiming the laser. Touchpad control panel INCLUDES: 2 x AA batteries, QuickLink bracket system and soft protective pouch