HIOKI 3333 is a discontinued cost-effective benchtop single-phase AC-only power meter, fully replaced by PW3335. Optimized for PSE safety testing, adapters and small single-phase equipment power consumption screening for energy efficiency certification.

Compact lightweight chassis with 3-window 6-digit simultaneous display for voltage, current, active power, PF and apparent power. It only measures AC signals from 45 Hz to 5 kHz, without DC measurement or harmonic analysis capability, direct input up to 300 V / 30 A for low & medium power single-phase AC loads.