DUAL MODES & SELF-LEVELING The cross line laser with slide switch enable you to set 2 modes, self-leveling mode and manual mode. When working in self-leveling mode, the range of leveling and compensation is 4 1and the laser level willautomatically level for horizontal/vertical/cross line, otherwise the laser will flash to indicate thr out-of-level condition. In manual mode, the self-leveling function is deactivated and the cross is locked to use the device at any angle. HIGH VISIBILITY & ACCURACY The powerful cross line laser easily project a red cross line at a wide angle of 110to assist your leveling jobs, bright and clear. With high accuracy of 1/8 of an inch at 30 Ft, the line laser enjoys lower energyconsumption and longer battery lifespan, ideal for paving tiles, installing photo, door, window, or furniture carpentry, hanging wallpaper, etc. HIGH PROTECTION GRADE The line laser reaches IP54 protection grade (shock resistant, waterproof, dustproof, shockproof, wear resistant, impact resistance, cold and high temperature.). The durable and high quality shockproof enclosure provides 4ft. collision protection. It's compact and lightweight for easy gripping, but large enough to sit stably, ideal for construction site work. FLEXIBLE MOUNTING DESIGN The laser level can be mounted onto a tripod or affixed to most metal surface by using the magnetic bracket (sold separately), enable you to turn the laser level around at 360 degree, project lines in any position or angleor adjust the height from the tripod.