The Stabila LAR200 (05510) self-leveling off road laser kit, features one-button operation, a working range of 1800 ft., and horizontal only operation. The LAR200 laser level is designed for use in extreme outdoor temperatures (14F to 140F). Kit includes one LAR200 rotating laser, De-TECH receiver with clamp, batteries 2xD, manual and hard shell case. Accuracy is +/- 1/8" over 100 ft. Comes with patented "SPS" Shock Protection System, capable of taking a 6' drop to concrete. Also features a 600 RPM rotation speed, 120 hour battery life, and dust/waterproof housing.