... Off AUTO RANGE AC CLAMP MULTIMETER1. Function*AC /DC Voltage, AC Current, Resistance, Capacitance, Frequency, Duty cycle , Temperature(NiCr-NiSi sensor), Diode ... test and Audible continuity test * Display: 3 3/4 digit LCD with a max. reading of 3999. * AC Current ... 2. * Power supply: "AA" 1.5V 5# two piecesSPECIFICATIONS:AC Current:40A,400A,1000AAC Voltage: 400mV , 4V , 40V , 400V ,750VDC ...