Specifications:Versatile Digital Angle Finder with Laser This protractor and inclinometer can measure angle, check relative angles or be used as a laser level. As a 2-beam laser level, the left and right sides of the product can emit horizontal laser lines, help mark clearly. Takes advanced technology, use class II laser which is limited to 1mW continuous wave, safe for daily use. The measuring tool gives your home improvement the most accurate results or other DIY projects. 2 measurement modes and precise angle measurements There are 2 measurement modes: absolute measurement (ABS) and relative measurement (REF). Just a short press, you can check the true or relative angle conveniently. The digital level with 360 (4*90) measuring range, accuracy: 0.1at 0 and 90.0.2 at angles of repose. One-knob switching angle and slope with 0.01 resolution, this digital angle gauge will give you the detail you need for design purposes. Notes: Please allow 1-3cm measurement error. Photo color might be a little different from the actual product due to color display of different monitors. Package included: 1pc of item.