Features:This professional self-leveling laser level features 2/3/5 lines for a broad array of alignment and precise measurement.Automatic self leveling mechanism. Audio warning when beyond auto leveling range.360 degree rotatable base with fine tuning knob, quickly identify the target.Alternating current or direct current dual use, high efficiency and convenience.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.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 fixing, stair handrails and more. Specifications:Line: 2 lines, 3 lines, 5 linesMaterial: Aluminum Alloy Chassis + Engineering PlasticsProduct Size: Approx. 21 x 19.5 x 17 cm / 8.27 x 7.68 x 6.69 inchGross Weight: Approx. 1.5 kgLaser Diode: 532 nm green lightLaser Wavelength: vertical and horizontal: 5 x 635nm, down plummet: 1 x 650nmSelf-leveling: +/- 3 degreeEmission Angle: >=120 degreeHorizontal Accuracy: +-1mm at 5mVertical Accuracy: +-1mm at 5mAccuracy of Lower Alignment: +-1mm at 1.5mOrthogonal Accuracy: +-1mm at 3mLine Width: 2 mm at 5 mWorking Environment: indoor/outdoorPower Supply: AC 110-240VPlug Specification: US/EU/AU/UKOblique Line Function: yesOperating Temperature: 0-40 degree CelsiusOperating Time: Approx. 8 HoursWall Sticking Distance: 7 mmWorking Distance: 20 mProtection Grade: IP54Color: Green+Black 2 Lines Laser Level: 2 Lines 2 Points (1 Vertical, 1 Horizontal, 2 Enhanced Points)3 Lines Laser Level: 3 Lines 4 Points (2 Vertical, 1 Horizontal, 1 Down Point, 3 Enhanced Points)5 Lines Laser Level: 5 Lines 6 Points (4 Vertical, 1 Horizontal, 1 Down Point, 5 Enhanced Points)Diagonal Function: An adapter needs to be configured. Hold down the OUT button for 5 seconds to lock the alarm. With the adapter, the diagonal open.