1) Auto/Manual range 2) True RMS for AC voltage and current 3) Auto zero key for DCA 4) Data hold function Features:1) Conform to the IEC1010-1 & IEC1010-1-032 standard2) Double insulation (protection class 600V CAT III and pollution degree 2)3) Display: 3999 counts and 42 segments bar graph4) Auto/Manual range5) True RMS for AC voltage and current6) Auto zero key for DCA7) Data hold function8) ...