Electronically-controlled dual slope feature Electronic self-leveling horizontally and vertically Laser beam modes include dot, two adjustable line lengths and two rotational speeds Accuracy +/-1/8"/100 ft. Exterior Range Up to 1200 ft. diameter with detector (not included) Includes 1 Rotary Laser; 1 Remote Control; 1 Detector with Clamp; 1 Tinted Glasses; 1 Target; 1 Multi-Function Mount; 1 NiMH rechargeable battery pack; 1 6.4V battery adapter; 1 Alkaline battery compartment (batteries not included); 1 Hard-Shell Carrying Case; 1 Instruction Manual Interior Range Up to 400 ft. diameter depending upon light conditions Laser Class 3 Laser Wave Length 532 Nm Leveling Method Automatic (Electronic) Max. Working Range 400' (120 m) Power Supply NiMH rechargeable battery pack and 6.4V adapter (included) Remote Range Up to 200 ft. diameter Rotation Speeds 200 and 500 RPM Scanning Modes 0°, 30°, 60° Working Temperature 32°F-104°F