[Specifications] Aluminum alloy digital thickness gauge, measuring range 0-25.4mm (0-1 inches), resolution up to 0.01mm (0.0005 inches), tolerance less than 0.001 inches (0.02mm), using SR44 battery (1.5V ), You can replace it yourself. [Use] For accurate measurement of soft materials, such as paper, film, leather, wires and sponges. [Sophisticated design] Large LCD display is used to make reading easier. With convenient port-RS232 data output interface, can be connected to a computer. Humanized design of grip and thumb trigger, easy to operate and hold. [Powerful] Metric and inch-inch and millimeters are exchanged with one key, and the setting is reset to zero. After 5 minutes, the power will be automatically turned off. [Detailed parameters] Response time: <0.5m / s, working temperature: 0-40 ?? C, storage temperature: -20 ~ 70 ?? C, relative humidity: ?¡§180% RH, material: aluminum alloy / iron