iGaging's Digital Caliper uses SUPER HIGH ACCURACY technology. The measuring speed is unlimited.  High quality surface finish for extra smooth slider movement. Features:

• Unlimited measuring speed
• Resolution: 0.0005" / 0.01mm / 1/128"/Fractional nut measurements
• Accuracy: 0.001"/0.02mm
• Range: 6"/150mm
• IP54 splash water and dust resistant
• Measuring speed: Unlimited
• Protection rating: IP54 (Humidity and dust resistance )
• Battery: 1x 3V CR2032 Battery (spare included) life:2 years under normal operation
• Hardened Stainless steel, lapped finished
• Operating environment:temperature 0°c+40°c; relative humidity: 80%
• Battery life:more than 2 years under normal operation
• Meets DIN Standard 862; ISO 9001 certified manufacturing

Video is here: youtu.be/jap0Zybhi9c