Feature: ◆Artifical design, novelty sturcture, handsome appearance andgood function. ◆New electromagnetic gauge transducer makes precision of the produces dependent protection. ◆With many application processes: auto-trouble test, auto-calibration, over-loading protection and so on. ◆Having the functions of counting parts, percentage, unition conversion operated easily and dependently. ◆Installed with Rs232 interface inside, and able to connect to the computer and printer directly.