Auto/Manual Ranging HVAC Digital Multimeter, 600V AC/DC w/ Voltect NCV Detector, Measures AC/DC voltage up to 600V, AC/DC current, resistance, frequency, capacitance and temperature CAT III 600V safety rated Non-contact voltage detection enhances safety Audible continuity quickly identifies shorts and opens Diode test to verify polarity Data hold freezes the reading on the display for further analysis MIN/MAX recording records min/max measurements over time to show voltage fluctuations Relative zero mode displays the difference between the actual reading and a stored reference value and may be used with any function or range Combines user friendly features such as, auto power-off to conserve battery life, low battery warning, a "third hand test probe holder, built-in test leads storage, a built-in flashlight, and a Velcro strap to hang the meter Auto and manual-ranging delivers maximum flexibility Backlit LCD display with analog bar graph makes it easy to view results, DIMS:7"H X 3/3-8"W X 1-3/4"D, WEIGHT:3LBS, ORIGIN:USA, IN BLISTER PACKAGE.