The 5522A Multi-Product Calibrator replaces the 5520A and addresses a wide calibration workload and comes with internal and external protection features that protect it against damage and make it easier to transport for on-site or mobile calibration. The 5522A can also be fully automated with MET/CAL Plus Calibration Management Software (version 7.3 SP1 or later). It is the ideal calibrator for metrology professionals who need to perform resistance calibration, voltage calibration, current calibration and more, and who want a transportable instrument that offers them a high return on investment.