The Fluke 5520A builds on the 5500A's capabilities, extending its workload coverage even further. Its improved accuracy, expanded ranges, and capability to calibrate 5 1/2 and 6 1/2 digit multimeters can cover virtually all your high-performance workload, including: Handheld and bench meters (analog and digital) up to 6 1/2 digits .
Thermocouple and RTD thermometers
Strip and chart recorders
Power harmonics analyzers
Current clamps and clamp meters
Analog or digital handheld and bench oscilloscopes (with options)
Power meters, disturbance analyzers, power quality monitors, recorders and other power quality related equipment (with option)