ITEM NAME:Digital Dial Indicator 0-12.7mm/0.5" Gauge Range 0.01mm/0.0005" Precision Tools Features: Digital Dial Indicator- Large LCD Display with 4 Digits, Be Used to  	Accurately Measure Small Linear Distances in Mechanical and Industrial  	Processes without Reading Errors, An Ideal Tool for Mechanical, Industrial  	Processes and Laboratory Use 0 ~ 12.7 mm Measuring Range- Measuring Range from 0 ~ 12.7 mm (0 ~ 0.5  	inch), High Resolution up to 0.01 mm (0.0005") Inch/Metric Conversion- Switchable between mm and inch, suitable for All  	Kinds of Measurement Zero Setting- Zero setting at any position, it is easy for minute difference  	measuring Specifications: Measuring Range: 0 ~ 12.7 mm (0 ~ 0.5 inch) Resolution: 0.01 mm (0.0005 inch) Response Time: ≠¤ 0.5 m/s Operating Temperature: 0 ~ 40 ℃ (32 ~ 104  °F) Storage Temperature: -20 ~ 70 ℃ (-4 ~ 158  °F) Relative Humidity: ≠¤ 80% Battery: One lithium battery (CR2032) with work voltage 3.0V Size: approx. 123x57x27mm/4.84x2.24x1.06" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not  	mind before you.1x Digital Dial Indicator. Storage Temperature: -20 ~ 70 ℃ (-4 ~ 158  °F). Relative Humidity: ≠¤ 80%. We  believe that everything could be solved by  communication.