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    • FlIR CM85-2 vs. Fluke 374FC

    FlIR CM85-2 vs. Fluke 374FC

    Sep 23rd 2025

    Fluke 374 FC vs FLIR CM85-2 — Answer-First Summary

    Both are True-RMS clamp meters built for industrial troubleshooting. FLIR CM85-2 adds advanced power analysis and VFD filtering; Fluke 374 FC nails the essentials with iFlex® expandability and Fluke Connect® logging.

    TL;DR: Choose CM85-2 for power quality diagnostics (harmonics, inrush, phase rotation, VFD filtering). Choose 374 FC for reliable AC/DC basics, iFlex® up to 2500 A AC, and seamless Fluke Connect®.

    FLIR CM85-2

    Best for power analysis, VFD-driven equipment, and advanced diagnostics.

    Fluke 374 FC

    Best for everyday AC/DC measurement with high-current expandability.

    Feature / Capability Fluke 374 FC (Certified in Houston) FLIR CM85-2 (Certified in Houston)
    AC Current 600 A (jaw), 2500 A with iFlex® 1000 A (clamp)
    DC Current 600 A 1000 A
    AC/DC Voltage Up to 1000 V Up to 1000 V
    Resistance Up to 60 kΩ Up to 100 kΩ
    Continuity Yes, audible Yes, audible
    Frequency 5 Hz to 500 Hz 5 Hz to 1 kHz
    Power Analysis Basic troubleshooting Harmonics (1st–25th), inrush current, phase rotation, power factor
    VFD Low-Pass Filter No Yes (VFD mode)
    Connectivity Fluke Connect® wireless Bluetooth METERLiNK®
    Safety Ratings CAT IV 600 V / CAT III 1000 V CAT IV 600 V / CAT III 1000 V
    Ruggedness Fluke build; field-tested 1.2 m drop; MIL-PRF-28800F vibration
    Display Backlit digital display Large dual display with backlight
    Which clamp meter offers deeper diagnostics?
    The FLIR CM85-2, with VFD filtering, harmonics, inrush, phase rotation, and power factor measurement.
    Do both support app connectivity?
    Yes. The 374 FC uses Fluke Connect®, while the CM85-2 uses Bluetooth METERLiNK®.
    What about high-current jobs?
    The 374 FC handles 600 A AC/DC directly and up to 2500 A AC with an iFlex® probe.
    Can M-Testco certify both?
    Yes. Both models are supported with NIST-traceable certification in Houston.

    M-Testco Advantage

    • NIST-traceable certification in Houston
    • Fast turnaround for minimal downtime
    • Support for both Fluke & FLIR models

    Best Choice by Application

    • Power Analysis and Industrial Use: FLIR CM85-2
    • Everyday AC/DC: Fluke 374 FC

    ✅ Ensure clamp meter accuracy with M-Testco certification

    Fluke 374 FC & FLIR CM85-2 — NIST-traceable, fast turnaround, certified in Houston.

    Request Certification