Specifications: - Laser Color: Green (reinforce) - Material: Aluminum Alloy Chassis + Engineering Plastics - 4D Laser Leveling: 8 Vertical Line, 8 Horizontal Line - Self-Leveling Range: -10℃~+50℃ - Self-Leveling Range: ±4° - Wall Sticking Distance: 6mm - Working Range: 40M - Wave length: 532nm - Working Environment: Indoors/Outdoors - Laser Class: Class II - Precision: ±1mm/7m Features: - This professional self-leveling laser level features 16 line for alignment and precise measurement. - Automatic self leveling mechanism. Sound warning when beyond auto leveling range. - The button is waterproof, wear-resisting and feel exquisite, easy to operate. - The thickened metal base provides stable support and it is shockproof, shatter-proof. - Plumb-point function, accurate positioning of the machine. - Easy to carry with the plastic case and carrying strap, providing quick and convenient mobility and storage. - Wide applications for auxiliary tiles fixing, wall decoration, floor tiles