Details: 100% Brand New and High Quality Medical Type Calipers Medical Material Stainless Steel Medical Measuring Range 0 - 150mm (0-6 inches) display digital LCD Resolution 0.01 mm (0.0005 in) Operating temperature 5-40 (41 to 104 degrees Fahrenheit) *Maximum measurement speed 1.5m/s Power1 x Button Cell 1.55V (Included) *Relative Humidity <80% Features: 100% Brand New High Quality Durable Stainless Steel Construction Extra Large Easy to Read Digital LCD Display Metric Switching and Zero Button Internal Measurements, External and Depth from 0 - 6" (0-150mm) Auto Shutoff to Save Energy User ManualAll Brushed Inside Retail Box Stainless steel design, no plastic, glides smoothly and is easy to control.Large LCD screen is easy to read Auto power off function to extend battery life. Three function keys are used for switching between imperial and metric, switching status and initial position reset. The basic measurement functions are about internal measurement, external measurement, depth measurement, step measurement and differential measurement. The slider clamping screw is a position lock for repeatable measurements. Package includes: 1 x Digital Vernier Caliper 1 x Mini Screwdriver 1 x English User Manual