This laser level is widely used for any job that requires straight lines or accurate measurement, such as hanging picture, shelf or air-conditioning installation, building construction, interior decoration, etc. Features:Can project 1 horizontal line and 1 vertical line with single line switch.Magnetic damping compensator to ensure quick self-leveling time.Launch oblique line function, slope locking mode and automatic leveling function.Auto-leveling and laser line will flash if the unit is out of self-leveling range after the lock key is opened.Includes only one button and a lock key, easy to operate and control.Special shake-proof design to avoid vibration while in transport, with 1/4" interface for tripod connection.Perfect for home decoration, installation of the floor, framework, laying of tiles and wall charts, etc.Mini size and light weight for easier operation and carrying. Specifications:Type: With Bracket / Without Bracket (Optional)Laser Beam: 1H1V (Cross Line, Horizontal Line, Vertical Line)Quantity of Laser Diode: Two Light Color: Red BeamEffective Working Range: 15mWavelength: 630-670nmLaser Power(H/V): 5mwLeveling Accuracy: ±1.5mm at 5m distance, ±3mm at 10m distanceLaser Safety Class: Class , Output ≤1mwMaterial: ABSAuto-leveling Range: 4°±1°Beam Emission Angle(H/V): 130° Self-leveling Time: 3sAutomatic Leveling Function: YesWaterproof Level: IP54Connector Interface: 1/4" ThreadOperating Time: 20 HoursPower Supply: 4 * 1.5V AA Batteries(Not Included)Operating Temperature: -10 50Storage Temperature: -25 70Item Size: Approx. 90 * 58 * 85mm / 3.5 * 2.3 * 3.3inItem Weight: Approx. 449g(With Bracket) / 258g (Without Bracket)Package Size:Approx. 24.3 * 11 * 8.6cm / 9.6 * 4.3 * 3.4in(With Bracket)Approx. 12.5 * 10.5 * 7.8cm / 4.9 * 4.1 * 3.1in(Without Bracket)Package Weight: Approx. 605g(With Bracket) / 380g (Without Bracket) Package List:1 * Laser Level1 * Protection Bag1 * Bracket1 * User Manual(English)