... SOE,TOU. 31th harmonic PMAC720, a perfect Power meter, display by LCD panel.Features:1. ... optional modules4. 10 years back-up of integrated energy data5. Large LCD, high brightness, auto-scrolling6 ... power – Pa, Pb, Pc, ∑P4. Reactive power –Qa, Qb, Qc, ∑Q5. Power factor—PFa, PFb, PFc, ∑PF6. Frequency7. Active energy—kWh8. Reactive energy ... 0.0010~100% PMAC720 Power Meter PMAC720 Power Meter, Energy Meter