Features: The laser level with high brightness laser and long projection distance, There are 3 object measurement modes: vertical line, horizontal line and cross line. Surface Inclines 3, laser level will automatically self level; Surface Inclines >3, laser level will flash continuously to indicate adjustment. With IP54 waterproof grade, convenient to use both indoors and outdoors. Perfect for home decoration, installation of the floor, framework, laying of tiles and wall charts, etc. Smart pendulum system: self-leveling and indicates out-of-level condition. Press and hold the green power button on the top to turn on or off the laser cross line. 1/4" screw size for easy connection, it can be used with tripod to adjust the working height of the machine. Specifications: Type: A / B / C / D / E (Optional) Laser Wavelength: 520nm Emit Power: