Mobile computers, cellular phones and consumer electronics products are being made in increasingly smaller sizes and with more advanced features. The resistor devices used in these products also need to be smaller and more precise, while pricing is becoming more of an issue. At the same time, ISO9000 and other standards have made the maintenance of measurement instruments more important, and the globalization trend is leading companies to move more of their device production facilities offshore.

The 7556 Series of digital resistance meter was developed in light of these issues to meet the new requirements for resistor device production lines.