360-Degree Self-Leveling Green Beam Laser w/ Plumb Line 40-6607 It also uses three AA

It also uses three AA alkaline batteries and works up to 20 hours

Specifically designed for those who prefer larger keys and a larger display - a perfect size for the kitchen countertop

Quick clamp system on both bases for fast tool-free conversion — Move motor from base to base with ease

Durability and Lasting Design: The included LR20 laser receiver has an easy-to-read LCD dual display and a rigid attachment to leveling rod

the laser can also be raised or lowered 2-1/2 inch and rotate 360 degrees

360-Degree Self-Leveling Green Beam Laser w/ Plumb Line 40-6607 It also uses three AAThe Johnson 360 Degree Self Leveling Green Beam Laser with Plumb Line is a reliable device used by plumbers and contractors in framing, flooring, piping, and other construction applications. It features the high quality laser device that projects a full 360 degree horizontal line, and a vertical plumb line that intersects the 360 line for a precise and reliable alignment. This self leveling tool can also be used in cabinetry, drop ceiling