Features: 1. Durable and practical 2. Portable, very convenient to carry out 3. Large screen display, read it very clearly 4. Can switch between mm and inch Specification: 1. Resolution: Digital indicator: 0. 01mm/0. 0005"" Digital micro-indicator: 0. 001mm/0. 00005"" 2. Measuring Range: Digital indicator: 0~12. 7mm/0. 5"", 0~25. 4mm/1"" Digital micro-indicator: 0~5mm/0. 2'', 0~12. 7mm/0. 5'', 0~25. 4mm/1"" 3. Power: One silver oxide battery(SR44) with work voltage 1. 5v 4. Operating temperature: 0°C~40°C 5. Storage temperature: -20°C~70°C 6. Relative humidity: ≤80% 7. The response speed: ≤0. 5m/s 8. Size: 12*5. 5*2. 5cm/4. 72*2. 16*0. 98"" 9. Material: Aluminum Alloy 10. Color: As pictures Package include: 1 x Digital dial indicator 1 x Rear Cover 1 x 1. 5V Battery 1 x Instruction Manual