Bosch Self-Leveling Rotary Laser with Layout Beam Interior Kit with Receiver, Remote and Wall Mount GRL 300 HVD VISIBILITY: The Bosch GRL 300 HVD offers a full selection of laser beam visibility enhancements such as variable speed selection, variable scan angles for maximum visibility in all light conditions CONVENIENT: The 90-degree plumb and layout laser beam allows for easy set-up and layout of 90-degree corners. The highly visible lines use smart laser technology to adjust luminosity, promote maximum visibility while still maintaining safety. ADJSUTABLE: The protected cage for head assembly also provides access to quickly hand position the laser beam on a known point or work area. Offers portability with two large, easy-to-grip carrying handles. SELF-LEVELING: The Bosch GRL 300 HV offers fast horizontal and vertical electronic self-leveling with disturbance monitor. It provides accuracy up to +/- 1/8-Inch at 100 ft, range of 300-feet without detector, and 1000-Feet with detector Class IIa laser product, &lt;5mW power output