[Easy to Operate, Easy to Read and High Accuracy]---The digital protractor goniometer and inclinometer is easy to operate, just press the on/off button to measure the angle data. High-visibility LCD screen; Data synchronization when reversing. High precision: 0.2, resolution: 0.05, measurement angle: 0-360 (4*90). [4 Sides Built-in Magnets]---The digital angle measurer is designed with upgraded 4 sides strong magnets, which can firmly attach to any metal surface, such as miter saws, band saws, table saw blades, etc. The left and right sides provide convenient and accurate angle measurement. [Hold and Zero Button]---Our magnetic goniometer tool is also designed with a hold and switch function. 1. Hold key: short press to hold the angle data; long press for 2-3 seconds to switch the angle (resolution: 0.05) and slope (resolution: 0.01). 2. Zero button, short press can switch between absolute and relative angle measurement. [Type-C USB charging design]---The digital goniometer has a built-in rechargeable battery. The magnetic goniometer will automatically switch off after 3 minutes of inactivity. A Type-C USB charging cable is included. [PORTABLE COMPACT SIZE & WIDE APPLICATION] --- The goniometer provides perfect measurements even in narrow spaces. Tote bags can help avoid scratches. Widely used in saws, woodworking machinery, construction, automobile inspection and maintenance, etc. The best partner and choice for , construction workers, decoration designers, craftsmen, etc. Colour:Photo Color Material:Metal Package Contents: 1 x digital inclinometer 1 x USB charging cable 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.