Features [Aluminum Alloy Construction] Made of sturdy aluminum alloy, this dial test gauge is built to withstand heavy duty use and ensures long lasting performance. [IP65 Waterproof Design] This digital dial indicator is designed with IP65 waterproof rating, allowing you to use it in various working environments. [Precise Measurement] With a resolution of 0.01mm (0.0005in), this dial indicator provides accurate and precise measurements for your professional or DIY projects. [Long Battery Life] Powered by a 3V lithium manganese battery, this dial indicator has a battery capacity of 220mAh, ensuring a long lasting power supply for your measurements. [Easy to Read Display] The large screen provides clear readings and allows you to easily switch between metric and imperial units for convenience. Specification: Item Type: Digital Dial Indicator Material: Aluminum alloy Battery Type: Lithium Manganese Battery  (Included) Battery Model: CR2032x1 Battery Capacity: 220mAh Resolution: Approx. 0.01mm/0.0005in Measurement Range: Approx. 0-50mm/2in 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 Instruction Manual Package List 1 x Digital Dial Indicator 1 x Battery 1 x Plastic Box 1 x Screwdriver 1 x English Instruction Manual