[High Accuracy] Four different measurement units have a wide range of applications and meet different needs. [Auto Standby] This digital inclinometer will automatically shut down after 5 minutes to protect the battery without any operation. [Magnetic Base] The mini electronic level has a strong magnetic base, which can be easily and firmly attached to the measured object. [Powerful function] Click Press the "Return to zero" button to set the relative zero angle, then click the "Hold" button to keep the current reading on the screen. [Reminder] When the plane of measurement is uneven or there is a large gap between the measurement plane and the bottom of the product, there will be a certain error when returning to zero. (The product is sold without batteries) This product is a innovative angle and level measuring tool, LCD display, easy to read. Light weight, easy to carry and use. It is particularly convenient to measure various angles, the level and angle of the inclined plane of the miter saw, the inspection and maintenance of the volume of the vehicle, etc. 1. Display resolution: 0.1 2. Precision error: +/-0.2 (0-90), the other precision error 0.3 3. Measuring range: 490, 3 lengths of 100-150-200mm 4. Power supply: 2 x 3V CR2032 button cell batteries (the product is sold without batteries) 5. The bottom measuring surface is magnetic Pictures are taken in kind, there will be color difference, details shall prevail in kind, please forgive me