. 3 3/4 digits for max reading 3999 . Auto ranging multimeter . Data hold for easy reading . Audible continuity & Diode test . Auto power off (Sleep mode) . All range overload protection . Temperature measurement . Relative measurement Function Range Accuracy DC voltage 400mV-1000V +/-(0.5%+1dgt) AC voltage 400mV-700V +/-(1.0%+3dgt) AC current 40uA-20A +/-(1.2%+1dgt) DC current 4mA-10A +/-(1.0%+3dgt) Resistance 400-40M&Omega +/-(1.0%+2dgt) Capacitance 20nF-20uF +/-(4.0%+3dgt) Temperature -20C~1000C +/-3.0% DiodeYES Transistor:YES Continuity test:YES back light:YES Sleep mode:YES Data hold:YES Power supply:AAA 1.5V*2 MAX supply:1999 Weight:180g Dimension:145*70*35mm Accessories:test leads,manual,holster