3 X 360Laser Level- We use the green laser beam, which is 4 times brighter than the traditional red laser. One horizontal line and two vertical lines can rotate 360 degrees to cover the floor, walls and ceiling of the whole room. Two vertical lines intersect at a 90 angle, allowing users to quickly visualize and complete the square layout. Laser power: Visible indoors and outdoors- Our laser level made of optical glass, which has good light transmission and clear laser line; The brightness and thickness of the laser can be adjusted according to the brightness of the environment. The light is brighter in the sun and thinner in the dark to protect the eyes and ensure the precision of the light. Tilt Mode- Press and hold the OUT button for 3 seconds to switch in tilt mode. If the device is tilted, there will be no alarm. For example, you can use this feature to measure stairs. Self-leveling always ensures 100% straightness and automatically compensates for 3 unevenness. Auto-Leveling & Manual Mode- This laser level can be self-leveling within 3 and indicate out of level by flashing and emitting a beep for slopes greater than 3. It will also provide a solution if you need slanted lines: manual mode. Press and hold the power button for 3 seconds on the control panel to turn off the self-leveling function and lock the pendulum. to attach to metal surfaces on the wall and rotate the laser level 360, also offers 1/4" mounting threads on the bracket and device to fit standard tripod or pole mounts. Ideal for paving tiles, installing pictures, doors, windows or furniture, hanging wallpaper, painting, etc.