Specifications:Material: Aluminum Alloy Chassis Engineering PlasticsLaser lines: 12/16 lineLaser Color: GreenRotation Degree: 360Application: Auxiliary tiles fixing, wall decoration, floor tiles fixing, stair handrails, furred ceiling, floor tile, plastering.Features: 3D/4D 12/16 line irradiation, 360 without dead angle. Indoor and outdoor general Universal, High brightness green, indoor and outdoor clearly, far projection distance, high laser height, clear lines. Touch screen design, touch screen operation, more convenient. Precise measurement and more convenient to use. Crashworthy and anti knock, crashworthy and anti knock. International standard IP54 waterproof and dust-proof, multiple protection, Longer life in harsh environment. Large-capacity lithium battery, durable 3Automatic self leveling function. Sound warning when beyond auto leveling range.