Wall laser level:
Bubble Vial for level/plumb.
Laser lens mounted on 360 Rotary dial.
On/Off Button.
Install batteries behind the metal Plate at the base below.

Setup:
1. Determine location for laser line on the wall and then mark it.
2. Align the "convex"side of the metal Plate to the mark via the pinhole.
3. Secure the aligned metal Plate to the wall using 2pcs of Residual Adhesive Tapes.
4. Attach the rotary laser level (with built -in magnet) onto the metal Plate.
5. Adjust the laser level until bubble vial is centered. Press the on button and turn the rotary dial to the desired angle.

Technical Specifications:
Laser class: Class IIIA
Maximum power output: <5mw
Wave length: 630-660nm (red)
Operation Temperature: -1 to 40º C
Accuracy: 1mm/n
Caution: Class IIIA PRODUCT AVOID ANY DIRECT EYE EXPOSURE! THIS TOOL EMITS RADIATION.