Features HIGH ACCURACY MEASUREMENT: The micro digital thickness gauge has a resolution of 0.0005in/0.01mm and is extremely accurate to ensure accurate wall thickness measurement MULTIFUNCTIONAL MEASURING TOOLS: In addition to measuring thickness, the thickness gauge can also be applied to other fields, such as industrial manufacturing, machining, etc., and can be widely used DIGITAL DISPLAY DESIGN: Thickness gauge use digital display, intuitive and clear, easy for you to read and operate, effectively improve work efficiency ALUMINUM ALLOY MATERIAL: Digital dial thickness gauge is made of lightweight and durable aluminum alloy material for long lasting use, possess good strength and good corrosion resistance BATTERY POWERED: Dial thickness gauge with a 3V button lithium manganese battery CR2032, battery capacity 220mah, come with long life, portable and practical Specification: Item Type: Micro Digital Thickness Gauge Material: Aluminum alloy Battery Type: Lithium manganese battery Battery Model: 1 x CR2032 Battery Capacity: 220mAh Resolution: 0.01mm/0.0005in Power Supply: 3V Button lithium battery(CR2032) Operating Temperature: 0-40℃ Storage Temperature: -20-70℃ Relative Humidity: ≤80% How to Use: 1. Press the power switch to turn on the power. 2. Press down the plunger cap to bring the upper and lower measuring surfaces together (wipe the upper and lower measuring surfaces clean). 3. Press the zero button to reset the display screen to zero. 4. Move the plunger cap up and down to measure the part. packing list: 1 x Thickness Gauge 1 x Battery 1 x Plastic Case 1 x User Manual Note: Battery included, installed in the product. Package List 1 x Thickness Gauge 1 x Battery 1 x Plastic Case 1 x User Manual