Autoranging DMM with NCV detector. The Extech EX320-NIST is a compact auto ranging multi meter, features extra-large 2000 count display and built-in non-contact AC Voltage detector. Continuity, diode test and Max Hold functions. AC/DC Voltage & Current, and Resistance measurements. Rubber holster protects meter. UL listed Cat III – 600 Volt. With NIST Calibration.