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 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169 