详细信息：
True RMS (TRMS) , Precision accuracy to 0.02% , Measurements:Voltage up to 1000V AC/DC, Resistance, AC/DC , Current, Frequency, Capacitance, Duty Cycle , Dual Temperature , Optical isolated PC interface capability , Crest (Peak hold), MAX, MIN MAX-MIN recording , Auto and manual ranging , Intelligent auto power off , Data hold , Relative zero mode , Audible andVisual warning against improper plug-in , DC Loop Current 4～20mA , dBm reading with 20 selectable impedanceValues , Backlight display , Large, easy to read large LCD display , High speed analog bar graph , Diode Test , 4～20mA DC loop current , Audible continuity , Safety CAT IV 600V, CAT III 1000V
