Buyer Feedback-GDVA-405 Automatic CT PT Analyzer We are very pleased to receive good feedback from our customers regarding the use of the GDVA-405 CT PT analyzer! GDVA-405 CT PT Anayzer is designed as per IEC60044-1,IEC60044-2,IEC60044-5,IEC60044-6 and IEC61869. It can measure all kinds of CT and PT. The accuracy is 0.02%(typical),0.1%(Guarantee).