1.Display: 3 3/4 digit LCD with a max. reading of 3999. 2.AC /DC Voltage to 750V/1000V 3.Auto Power Off AUTO ... (NiCr-NiSi sensor), Diode test and Audible continuity test * Display: 3 3/4 digit LCD with a max. reading of 3999. * AC Current ... (CAT 600V) pollution degreen 2. * Power supply: "AA" 1.5V 5# two piecesSPECIFICATIONS:AC Current:40A,400A,1000AAC Voltage: 400mV , 4V ...