3 digit LED display display 1 : from 0 to 99.9 (0.1 resolution) (e.g. for voltages) display 2 : from 0 to 99.9 (0.01 resolution) (e.g. for currents) full-scale input sensitivity : 99.9mV automatic reset input impedance : 100Mohm overload indicator for current display supply voltage : 125 or 220VAC dimensions : 170 x 70mm (6.7" x 2.8")