GDDO-20C AC/DC Motlakase Meter Calibration Device e sebelisetsoa ho bona phoso ea mantlha ea lisebelisoa tse fapaneng tsa motlakase oa maqhubu a motlakase lits'ebetsong tsa matla, ho kenyelletsa voltmeter, ammeter, wattmeter, ohmmeter, mohato o le mong & mekhahlelo e meraro ea matla a AC (ho ikhethela) le phoso ea mantlha ea DC volt-meter le ammeter.