Patented Dual Pendulum Automatic Leveling Technology: The only simultaneous level and plumb laser available gives unmatched versatility for both indoor and outdoor applications. ■ Level, Plumb and Crossliner Beams: Six adjustable line lengths and three variable speed spin modes allow customization of beam lengths and brightness to meet specific level, plumb and crossliner applications and lighting conditions. ■ Automatic Out of Level Sensing: Audible (beeper) and visual (blinking laser beam) out of level indication signals if the units is out of level after initial set up. This eliminates tool status checks and costly errors, saving time and money. ■ Radio Frequency (RF) Remote Control: Allows for nondirectional, unobstructed operation anywhere on a cluttered jobsite, no line of sight required. Detects laser beams where the beam is not visible, even in bright sunlight. Allows for one-man operation of the laser system from the point of application. ■ Field Recalibration: Keeps the tool on the jobsite.