1、[IP65 Waterproof Design] This digital dial indicator is designed with IP65 waterproof rating, allowing you to use it in various working environments. 2、[Precise Measurement] With a resolution of 0.01mm (0.0005in), this dial indicator provides accurate and precise measurements for your professional or DIY projects. 3、[Aluminum Alloy Construction] Made of sturdy aluminum alloy, this dial test gauge is built to withstand heavy duty use and ensures long lasting performance. 4、[Easy to Read Display] The large screen provides clear readings and allows you to easily switch between metric and imperial units for convenience. 5、[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. 1 x Digital Dial Indicator1 x Battery1 x Plastic Box1 x Screwdriver1 x English Instruction Manual Item Type: Digital Dial IndicatorMaterial: Aluminum alloyBattery Type: Lithium Manganese Battery  (Included)Battery Model: CR2032x1Battery Capacity: 220mAhResolution: Approx. 0.01mm/ 0.0005inMeasurement Range: Approx. 0-50mm/2inPower Supply: 3V CR2032 Lithium Button BatteryOperating Temperature: 0℃ to +40℃Storage Temperature: -20℃ to +70℃Relative Humidity: ≤80%