Feature: 1. The tip design is suitable for deep hole and pipe wall measurement, very versatile 2. Clear any position to facilitate the conversion between relative measurement and absolute measurement 3. Digital display caliper, the size is more clear to read and the result is accurate 4. The accuracy is up to 0.01mm, and measuring range is 100mm, very trustworthy and reliable 5. Digital brake disc caliper can be used in the temperature of 27-40℃, practical and convenient Specification: Item Type: Digital Brake Disc Caliper Model: 100mm brake pad digital caliper Accuracy: 0.01mm Measuring Range: Approx. 100mm / 3.9in Operating Temperature: 27-40℃ Battery: 1 x LR44 button battery(not include). Package List: 1 x Digital Brake Disc Caliper Note: 1. After installing the battery, be sure to set the (origin).2. When installing the battery, please pay attention to avoid damaging the battery terminals. 3. Please note that the new type and old type of this product will be sent randomly,and make sure you will not mind before ordering.