2100 2101DigitalWattmetersBothunitsboasttwinhighresolutiondigitaldisplays,DCto50KHzfrequencyresponse,truepowermeasurement,trueRMSvoltageandcurrentandbuilt-inpeakoverloadindicators.Theonlydifferencebetweenthemodel2100andmodel2101istheirrespectivevoltageranges,Bothmodelsaresinglephase,howeverthreephasemodelsareavailable.ModelVoltsAmpsWatts2100150,300,6000.2,2,2030.00-12,000210130,150,3000.2,2,206.000-6,000