Feature: 1. Adjustable Lines: Both the vertical and horizontal line supports independent on and off, and the line adjustment will satisfy your needs for far and near leveling. 2. High in Accuracy: Adopting LD light source, the 2 line cross level with 2 laser modules enables self leveling and manual operation for simple and accurate working. 3. Simple Operation: Can work in a low position, the line level also has touch buttons, top bubble level and 1/4in bracket connection nut for more convenient using. 4. Wide Application: Allows for wide application in a variety of areas, including but not limited to home decoration, woodworking, production, industrial use and more. 5. Great Durability: Comes with a compact size and a light weight as well, the line laser is equipped with durable casing and rubber edge for excellent durability. Specification: Item Type: Line Level Model: FC 818LLR Material: Plastic, metal. Wavelength: 515nm, red light. Accuracy: ± 0.2mm/m. Line Width: Approx. 1 ~ 1.5mm / 0.04 ~ 0.06in. Unbalance Alarm: Buzzer and flashing alarm. Temperature: -5 ~ 45℃. Light Source: LD Protection grade: IP54 Automatic Leveling Range: ± 3° Laser Angle: 90° ± 30° Power Supply: 2 x AA battery, not included. Working Radius and Distance: Approx. 10 ~ 20m / 32.81 ~ 65.62ft Green Laser Power: 15mW. Package List: 1 x Line Level1 x Storage Box1 x User Manual