Features [Waterproof IP65 Design] This digital dial indicator is IP65 waterproof, so you can use it in different working environments. [Precise Measurement] With a resolution of 0.01mm (0.0005 inches), this dial indicator provides accurate and precise measurements for your professional or DIY projects. [Aluminum Alloy Construction] This dial indicator is made of durable aluminum alloy and is built to withstand heavy use and ensure long-lasting performance. [Easy to Read Display] The large screen provides clear readings and allows you to easily switch between metric and imperial units. [Long Battery Life] Powered by a 3V lithium manganese battery, this dial indicator has a battery capacity of 220mAh, ensuring long-lasting power for your measurements. Specification: Item Type: Digital Dial Indicator Material: aluminum alloy Battery type: lithium manganese battery (included) Battery model: CR2032x1 Battery capacity: 220 mAh Resolution: approx. 0.01mm/0.0005 inch Measuring range: Approx. 0-50mm/2 inch Power supply: 3V CR2032 lithium button battery Operating temperature: 0℃ to +40℃ Storage temperature: -20℃ to +70℃ Relative humidity: ≤80% Package list: 1 x Digital Dial Indicator 1 x battery 1 x Plastic Box 1 x Screwdriver 1 x English User Manual Package List 1 x Digital Dial Indicator 1 x Battery 1 x Plastic Box 1 x Screwdriver 1 x English Instruction Manual