1It can be widely used in stair floor laying, woodworking decoration, hanging installation, wall construction, doors and window decoration. 2The use of green beam fine light source, high accuracy, accurate measurement, small error, more convenient to use. 3Made of high quality ABS material, durable, wear resistant, corrosion resistant, long service life. 4Self leveling, automatic alarm for uneven products, intelligent and convenient, higher efficiency. 5Portable design, it effectively reduces labor strength, improves working efficiency. It can be hung on the wall and can be used anywhere. Item Type: Line Level Material: ABS Color: As shown in the picture Display: 2 lines of green beam Light Source: Semiconductor Optical Power: 90 Applicable Temperature: -10-50 Power Supply: 2 x 1.5V AA batteries (batteries not included) 1 x Line Level(Battery Not Included) 1 x Cloth Bag Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.