Automatically identify testing modes for AC voltage /DC voltage/resistance/continuity
Non-connection AC voltage detection, and judge the strength through light and buzzer
Self-calibration when power on to ensure accuracy
LIVE firewire recognition
Display backlight
True RMS
Data hold. Low battery display

Insize 3101-150E, DIGITAL OUTSIDE MICROMETER, IP65, 5-6"/125-150mm, 6928640326837 