GF312V2 THREE PHASE KWH METER ON-SITE CALIBRATOR is the latest product introduced by GFUVE after visit users and take the reference of other similar products’ advantages at home and abroad. The measurement part of this product take samples of high-speed A/D conversion and sent to DSP for digital processing, thus greatly improving the accuracy and stability of the measurement. The central processing part takes 32-bit ARM embedded technology, which makes the instrument novel in interface, rich in function, clear and simple in operation, and stable in performance. Accuracy level: 0.05 level.