3 ¾ Digit 3100 counts which measures Vac, Vdc, Aac (from 3mA), Adc (from 300microA), Ohm, Diode, DataHold, Farad, Hz Duty cycle, Neg Value ind, Auto/ Manual range, continuity test, Temp. (PT100/PT1000), overload warning, Auto Power off, CAT III 1000V & CAT IV 600V