Shinwa Sokutei Digital Micrometer 79523 0~25mm

Power source: Lithium battery CR2032 x 1 (The included battery is a test monitor battery, so the battery life is short.) Battery life: about 8 months Auto power off: about 5 minutes Measurement pressure: 10N Minimum reading: 0.001mm Instrumental error: plus or minus 0.003mm Operating temperature: 0 to 40 degrees Storage temperature: 20 to 60 degrees