DB4电流、电压、功率、传感器表DB4-***DB4I-AADB4I-P***DB4-PF01DB4-PAADB4-PWDB4-DADB4I-***DB4I-PDADB4I-PWDB4-PHZ工频表DB4-PDADB4-QDB4-DVDB4I-HZDB4I-PDVDB4I-SADB4-PSADB4-PDVDB4-R0DB4-HZDB4I-PAADB4I-PDVDB4I-WDB4-PSVDB4-W)