The Fluke 28 II is Fluke’s flagship rugged industrial multimeter designed for on-site troubleshooting and lab R&D of factory power distribution, variable-frequency motor drives, HVAC, PV energy storage and automotive electronic control systems. It delivers industry-leading basic DC voltage accuracy of 0.05 %, with dual-display modes: standard 6,000-count and high-resolution 19,999-count True-RMS measurement. A dedicated VFD low-pass filter suppresses high-frequency EMI noise from inverters to deliver stable readings on distorted PWM waveforms.