1. The thickness gauge is a precision measuring tool. During use, it should be protected from collisions or drops to avoid damage to its accuracy. 2. The thickness gauge should be kept clean. Prevent water and other liquid substances from seeping in to avoid affecting its normal use. 3. Do not apply voltage to any part of the thickness gauge, and do not write on it with a pen to avoid damaging the electronic circuit. 4. When not in use for a long time, the battery should be removed. 5. Name: Mini Digital Thickness Gauge 6. Specification: 0 - 20 mm/1 inch 7. Accuracy: 0.01 mm/0.0005 inch 8. Storage and transportation temperature: -20°C - 70°C 9. Relative humidity: ≤80% 10. Style: Flat head style 11. Color: Gray 12. Material: Plastic 13. Packaging contents: 1 thickness gauge 14. Only the above packaging contents are included, and no other products are included. 15. Note: Light reflection and different monitors may cause slight differences between the color of the item in the picture and the actual product. The allowable measurement error is ±1 - 3 cm.