1. Magnetic adsorption: Strong magnetic adsorption design, firmly adsorbed ferrous metal. 2. Accurate horizontal measurement: 0° -90° angle accurate horizontal inclination measurement, accuracy up to 0.05°,1mm/m. 3. Three lines large horizontal bubble: three lines clear and accurate measurement; double sealed protective cover design, effectively protect the horizontal bubble, extend its service life. 4. anti-drop, anti-shock: with thickened end cap design, the level gauge is strong anti-shock ability. 5. Strengthened protective, 360° adjustable level bubble, sensitive and accurate measurement, effective protection of the level bubble, and extended service life of the level bubble. Product name: Digital display level Resolutions: 0.05 ° Accuracy: ± 0.1 Colour:red Material:Aluminum Alloy size:30cm / 40cm<br><br>Package Contents: 1 * Digital display level Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.