Features [Fine workmanship] The digital inclinometer has fine workmanship and is easy to use. [High-quality material] The digital level protractor is made of high-quality material, which is durable and has a long service life. [Stable performance] The digital angle protractor is stable and excellent in performance. [Easy to operate] The bottom measuring side of the digital protractor is magnetic, which is very convenient and easy to operate. [High precision] Its accuracy is very good, you don't need to worry about errors. Specification: Material:ABS Plastic Application:Widely used in the field of angle and level measurement Battery:2*Button Cell CR2032 (Not Included) Size (Optional) :100mm / 3.9in    150mm / 5.9in    200mm / 7.9in Resolution:0.1°  Accuracy Error:0.2~0.3° Angle Range:4*90° Bubble Level Quantity:2 Package List: 1*Digital Level Gauge Package List