360-degree full coverage horizontal leveling for all leveling applications Fast Self Leveling system automatically levels the laser in seconds and indicates out-of-level condition Compact and lightweight with single switch operation Easy to use and operate Includes the LR 3 laser detector with innovative extended range option when extra distance is required, for maximum one person operation convenience Smart Pendulum Leveling System self-levels and indicates out-of-level condition Secure transport lock protects pendulum when unit is switched off