Features 2 UNIT SYSTEM: This digital dial indicator can be switched between inch and metric, with a high resolution of 0.01mm (0.0005in), and a measurement range of 0 to 30mm (0 to 1.2in), suitable for various applications. CARBIDE PROBE: This digital dial test gauge adopts carbide probe, with M2.5 thread, has excellent wear resistance and embroidery resistance, can be removed and replaced with other sizes. HIGH ACCURACY: This electronic digital dial indicator can be used to precisely measure small linear distances, with no reading errors, highly reliable. CLEAR DISPLAY: This dial gauge adopts 3V voltage drive and digital screen, could clearly and intuitively display measurement results INDUSTRIAL GRADE: Stable and long lasting, this dial indicator is ideal for use in machinery, industrial processes and laboratories. Specification: Item Type: Digital Dial Indicator Material: Aluminum alloy Battery Type: Lithium manganese battery(Included) Battery Model: CR2032 x 1 Battery Capacity: 220mAh Resolution: 0.01mm/0.0005in Measurement Range: 0-30mm/0-1.2in Power Supply: 3V button lithium battery (CR2032) Working Temperature: 0℃ to +40℃ Storage and Transportation Temperature: -20℃ to 70℃ Working Humidity: ≤80% Package List:1 x Digital Dial Indicator1 x Battery1 x Plastic Box Note:Shipped with matching battery, the product itself with battery, has been installed on the product Package List 1 x Digital Dial Indicator 1 x Battery 1 x Plastic Box