... 400μA, 40μA, 4μA Frequency : 1KHz±30HzDC VoltageRange : 6V, 60V Resolution : 1mV, 10mV Accuracy : ±(0.1%rdg ±6digits) ... or less, non-condensing.Maximum Input Voltage60VDCPower Supply or AC AdapterSix AA size 1.5V alkaline batteriesBattery Life5.5 hoursWeight ... DCA current adaptor, Zero adjustment board, Instruction manual, batteries, AC adaptor, Optical RS232 cable, CD PC software, Carrying case.