Not sure which energy analyzers fit your job? PowerSight’s feature comparison chart helps you choose. The PS3550 covers THD and harmonics, the PS4550 adds swell/dip capture and high-speed transient capture, and the PS5000 adds a color graphic display and advanced measurements. The PS2500 is a complete entry-level power analyzer. For the PS5000 and PS4550, the Frequency Analysis Option adds power-line spectrum analysis from 3KHz to 100KHz. Trusted for reliable, accurate, and efficient power analysis in any environment. Call 925-944-1212 or request a quote today.