I-GDDO-20C AC/DC Isixhobo sokuLungelela iimitha zoMbane isetyenziselwa ukukhangela impazamo esisiseko yezixhobo zombane ezahlukeneyo zombane kwiinkqubo zamandla, kubandakanywa i-voltmeter, i-ammeter, i-wattmeter, i-ohmmeter, isigaba esinye kunye nesigaba sesithathu seemitha zamandla e-AC (ukhetho) kunye nempazamo esisiseko DC volt-imitha kunye ammeter.