Sustain safe, repeatable current measurements on live circuits with True RMS accuracy up to 400 A. The Fluke 323 clamp meter places jaw-style current sensing and basic voltage/resistance functions in a pocketable, impact-resistant package suited to field service and maintenance. True RMS measurement reduces error on non‑sinusoidal waveforms commonly found on motor drives and distorted power systems, improving troubleshooting confidence. The meter ships with test leads so technicians can perform inline voltage and continuity checks without sourcing additional accessories. Ergonomic jaws, single-handed operation and a clear display streamline fast diagnostics on distribution panels, branch circuits and machine power feeds. Choose this clamp meter when you need a straightforward, durable tool that balances accuracy with portability for routine electrical verification and HVAC, industrial and facilities maintenance tasks.