... meter manufacture High cost performance With CE certificate hIgh quality LCD Intelligent energy monitoring technical parametersvoltage imput, AC 100V,200V ... UAB,UBC,UCA.it's unit is V .indicator K or M lignting means KV&MV.display current (now ... IA,IB,IC.it's unit is A.indicator K or M lighting means KA&MA.display power (now ... P,Q,COS,it's unit is W,Var.indicator K or M lighting means Kw,KVar & Mw,Mvar. ...