Features 1、Large screen display, you can read it very clearly. 2、It can switch between millimeter and inch. 3、You can change a longer probe head according to your needs. 4、Metal integrated structure, stable and durable with high accuracy. 5、Removable rear cover for using on different magnetic gauge bases. Specification Features: 1. Large screen display, you can read it very clearly. 2. It can switch between millimeter and inch. 3. You can change a longer probe head according to your needs. 4. Metal integrated structure, stable and durable with high accuracy. 5. Removable rear cover for using on different magnetic gauge bases. Specifications: Model: AL1271 Material: Aluminium Alloy Resolution: 0.01-0.01mm Battery: 1.5V Button Cell(LR44)(not included) Probe Head Range: 0-12.7mm Weight: Approx. 246g / 8.7oz Package Included: 1 * Digital Indicator 1 * Rear Cover Note: Please allow some error due to manual measurement. Thanks for your understanding. Package List