... 0.1--120A auto shift range 4.Certificate:ISO 9001 Three Phase standard energy meter1.class accuracy:0.022.Adopts latest DSP ... reactive/active measurement.4. With LCD display and error calculator5.Three phase energy,voltage,current, power measurement and frequency,power factor, ... true,reactive-accross,reactive-accross60/90),3P4W(active, reactive-true) MDP2002A Three-phase Reference Standard Meter