... 2.high performance 3.ISO9001:2000 Single phase KWH digital meterApplicationDDM100SE single phase two wire electronic DIN-rail active energy ... 5(6)A,5(30)A,5(60)A,10(40)A,10(60)A.20(80)A,30(100)A, ... : -45°C ~ +85°CRelative humidity≤85%Service lifeMore than 10 yearsDimension75mm x 88mm x 73mmWeightApprox 270g*Please advise us if ... make according to your special requirements Single phase KWH digital meter