The E series of miniature portable ammeters & voltmeters consist of JIS C 1102-2 Class 1.0 and Class 1.5 instruments. The taut-band suspension system is used in the moving parts of models 2051 and 2052 to eliminate friction and provide strong resistance to shock impact.
These instruments are functional and compact, making them suitable for labs at research centers and schools. They are also very useful for factory setups in which numerous instruments are arranged on a small tabletop area, and they are small enough to be carried for maintenance service use.