ZEL microcomputer grounding line selection device for small current system is my company's technical personnel in summarizes the domestic all kinds of small current grounding line selection device for more than a decade after the experiences and lessons of success and failure, developed a new generation of small current grounding line selection device, the device's major improvements were made on the design of the hardware and software, make the device applicability is wide and stable work, fully functional, without debugging, convenient setting, line selection accuracy is greatly improved.
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