Item Type: Digital Micrometer _x000D_ Measuring Range: Approx. 0 ~ 25mm / 0 ~ 1in_x000D_ Accuracy: 0.001mm_x000D_ How to Use: _x000D_ 1. Because the micrometer is a accuracy measuring tool, it is prevented from falling, collision, etc., and loss of accuracy during use and storage. Otherwise, you need to re-check the calibration before you can_x000D_ 2. During use, it is possible to avoid exposure to dusty places, avoid sunlight, ultraviolet rays and high temperature radiation_x000D_ 3. Do not put the micrometer on a magnetic object, the workpiece needs to be measured after demagnetization_x000D_ 4. You can scrub the measuring surface with gasoline_x000D_ 5. Operating Temperature: 0-40; Operating Temperature: 80%