Features:Multipurpose Measure Gauge: including measuring AC/DC voltage, resistance, capacitance, frequency, continuity buzzer, diodes, live line identification, etc.Safety Operation: has overload protection of 250V AC/DC at all the ranges, and complies with the standard of IEC 61010 600V CATII and pollution grade 2.Auto Power-off: the meter will automatic shut down if there is no operation in 5 minutes. and the backlight and flashlight will shut off in 30s of no operating.Clearly Digital Display: 2.1-inch LCD screen with white backlight has analog display which can show the variation tends of measurements, 5999 counts display makes the reading more accurate.Magnetic Adherence: inbuilt with magnet on the back, which provides lots of help to air conditioner maintenance engineers during working.More Features: it has other functions of data hold, illumination, backlight, NCV test, low battery indicator, buzzer alarm, and more.