Description: Features: brand new and high quality One button operation makes it easy to select crossed lines, horizontal or vertical line. Its high-accuracy and speedy assures the quality of construction and make the process of construction convenient. Automatic leveling, when the level is not smooth, the light will be out of the frequent flashing warning. IP54 Waterproof and dustproof multiple for protection, and shock-proof machine core, durable in use. Use optical glass, low refraction, good light transmission. This product is widely used in construction and building, such as bricklaying, cutting plates, decoration, etc. Specification: Color of beam: Red Standard: 2 lines (1 vertical line, 1 horizontal line) Laser class: class 2 Laser wavelength: 630-670nm Leveling accuracy: 3mm/10m Leveling/Compensation range: 41 Working distance(line): 15m Operating time: 20 hours Power source: 4 x AA batteries(NOT included) IR rating: IP54 Operating temperature range: -10-+50 Storage temperature range: -25-+70 Product Size: approx. 92x85x57mm(3.62x3.35x2.24in) Package size: approx. 13x10x8cm(5.12x3.94x3.15in) Color: As pictures shown. Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Laser Level 1 x Storage Bag 1 x User Manual(English)(other accessories demo in the picture is not included.)