Fluke 378 Non-Contact Voltage True-rms AC/DC Clamp Meter – 378

Test faster, safer, and smarter with the Fluke 378 Non-Contact Voltage True-RMS Clamp Meter. Featuring FieldSense technology, this advanced clamp meter lets you measure AC/DC voltage and current without making direct contact with live conductors. Just connect the ground lead, clamp around the conductor, and get instant, reliable readings—right on the display.

Designed for modern troubleshooting, the Fluke 378 also includes an integrated Power Quality (PQ) Indicator, which automatically detects and displays potential PQ issues like poor power factor, voltage imbalance, or excessive current. This makes it easy to identify whether faults stem from your equipment or upstream power supply—no guesswork or extra tools required.

For demanding current measurements, the included iFlex flexible current probe allows you to measure up to 2500 A AC—perfect for tight or crowded panels. The 378 also simplifies 3-phase system testing by calculating and displaying all phase-to-phase and phase-to-ground measurements automatically, saving you time and manual effort.

Built for visibility and ease-of-use, this meter features a bright backlit display that turns green when a stable FieldSense reading is detected. It also features Visual Continuity for clear, audible and visual alerts in noisy environments.

Whether you’re troubleshooting industrial equipment, electrical panels, or performing 3-phase tests, the Fluke 378 is the high-performance clamp meter you can rely on—fast, safe, and efficient.

Specifications:

• FieldSense Technology: Non-contact AC/DC voltage and current measurements through the clamp jaw

• Voltage Range: 1000 V AC/DC

• Current Range: 1000 A (via clamp), 2500 A AC (via iFlex flexible probe)

• Power Quality Indicator: Auto-detection of PQ issues (voltage, current, power factor)

• 3-Phase Testing: Calculates and displays full set of phase-to-phase and phase-to-ground values

• Visual Continuity: Green backlight and audible alert for continuity checks in noisy environments

• Display: Backlit LCD with stable reading indication

• Safety Rating: CAT III 1000 V / CAT IV 600 V

• Included Accessories: iFlex flexible current probe, test leads, carrying case, batteries