FLIR CM85 1000V/1000A True RMS AC/DC Power Clamp with VFD Mode





FLIR CM85 1000A Power Clamp Meter with VFD and Bluetooth.
Industrial-Grade Power Clamp Meter Tackles Noisy VFD Jobs
Discover the FLIR CM85, a powerful 1000A AC/DC clamp meter that offers advanced power analysis functions which adds confidence when making measurements in environments where loads are using switching electronics such as variable frequency drives (VFDs) and today’s growing range of high efficiency lighting options. Designed by leaders in innovation at FLIR Systems, the durable power clamp gets you results on tough jobs.

In addition to True RMS current and voltage measurements, the CM85’s VFD Mode features a low-pass filter that ensures accuracy even when distorted waveforms exist on electronic loads (such as VFD-controlled equipment).

Power quality testing and load studies (to plan for future system-wide capacity) demand essential power measurement capabilities that set the FLIR CM85 power clamp meter apart from other test equipment. Measure power up to 1000kW as well as Total Harmonic Distortion & harmonics to the 25th harmonic helping you find problems that could cause the malfunctioning, damage or failure of important components.

The fast-responding in-rush current mode enables the meter to display the highest current reading in the first 100 milliseconds after the trigger point. A capability that is ideal for getting to the root cause of nuisance tripping, spurious resets and transients.

Bluetooth Connectivity
Designed for today’s technician, the advanced FLIR CM85 connects via Bluetooth to Android smartphones and tablets using the FLIR Tools Mobile app. Now, you can monitor electrical readings on equipment in closed cabinets, with dangerous moving components, or with extreme temperatures – all from a safe distance. Use the app to share diagnostic results with colleagues or customers on-site or remotely—share as primary readings or within professional-looking reports that are easily created.

As part of the FLIR family, this innovative meter also communicates with METERLiNK-enabled FLIR IR cameras, helping you record electrical readings on thermal images in real time. Whether you’re working on complex electrical, mechanical or pump systems, you want tools that can work together to gather and record all the relevant data—temperature and electrical together on one thermal image. This not only means you save time, it also ensures accurate, coordinated documentation for PdM inspection reports.

About the CM85
The FLIR CM85 clamp meter offers both safety and versatility without compromising high performance. Take the CM85 amp probe on every job as it delivers with advanced meter functions including True RMS accuracy, VFD filter mode, Power Quality Mode (THD, harmonics, watts, phase rotation) AC/DC current and voltage measurement, resistance, capacitance, frequency, diode-test, and continuity check. Use the fast-responding peak hold function to capture inrush currents and transients.

The 4-digit, 4,000 count display is LED-illuminated making it bright and easy to read from anywhere. Several one-button functions including data hold, min/max, and selectable auto- or manual-ranging. A relative function helps you “zero out” the meter. The large 45mm jaw opening handles conductors up to 1000 MCM.

The FLIR CM85 amp clamp has a CAT IV-600 V, CAT III-1000 V safety rating.

A Brighter Idea
The FLIR CM85 amp meter delivers on the value of added safety with a built in Non-Contact Voltage Detector and a built-in worklight. The non-contact voltage detector allows you to quickly and conveniently check for voltage prior to attaching the clamp meter’s test leads to the device under test—all without reaching for a separate voltage pen.

This clamp meter also features a super-bright, dual-LED worklight that illuminates dark or poorly-lit work areas without the use of a flashlight. This built-in light frees up a hand, adds confidence when performing visual inspections (for wear, pitting, dirt, corrosion and dust) and makes it easier to read faded labels and other markings.

For peace of mind, FLIR backs up its durable clamp meters with a limited lifetime warranty.


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FLIR CM85 1000V/1000A True RMS AC/DC Power Clamp with VFD Mode

SKU CM85 Category


1000A True RMS AC/DC Current Measurement
CAT IV-600V and CAT III-1000V Category Safety Rating
VFD Mode provides superior accuracy for working on VFD-controlled equipment
Advanced power efficiency and harmonics measurements for system level performance analysis
Inrush mode captures fast AC Current spikes during appliance start-up
Phase Rotation testing ensures the motor and power source are aligned
True RMS DMM functionality features reliable performance and expansive ranges
45 mm jaw opening
Powerful LED lamps not only assist with clamping but are bright enough to serve as a primary work light
FLIR Tools Mobile connects the FLIR CM85 to compatible smartphones and tablets via Bluetooth for remote viewing and sharing
METERLiNK technology wirelessly embeds electrical clamp meter readings into radiometric infrared images captured with compatible FLIR Thermal Cameras



FLIR Systems, Inc. designs, develops, manufactures, markets, and distributes technologies that enhance perception and awareness. We bring innovative sensing solutions into daily life through our thermal imaging, visible-light imaging, video analytics, measurement and diagnostic, and advanced threat detection systems.

FLIR offers a diversified portfolio that serves a number of applications in government & defense, industrial, and commercial markets. Our products help first responders and military personnel protect and save lives, promote efficiency within the trades, and innovate consumer-facing technologies. FLIR strives to strengthen public safety and well-being, increase energy and time efficiency, and contribute to healthy and intelligent communities.

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Additional information

Weight 1 g
Dimensions 30 × 20 × 10 mm


AC/DC Current 1000A ±2%
AC/DC Voltage 1000V ±1% / 0.7%
AC VFD Voltage 1000V ±1%
Harmonics 1st-25th Order ±5%
Total Harmonic Distortion 0.0 to 99.9% ±3%
Inrush Current 1000ACA ±3%
(Integration Time 100ms)
Active Power 10kW to 1000kW ±3%
(10V, 5A min)
Diode Test 0.4 to 0.8V ±0.1V
Capacitance 3.999mF ±1.9%
Resistance 99.99kΩ ±1%
Continuity Threshold 30Ω ±1%
Frequency 20.00Hz to 9.999kHz ±0.5%
Bluetooth Range Max 32ft (10m)
Jaw Opening 1.77in (45mm)
Category Rating CAT IV-600V, CAT III-1000V
Battery Type 6 x AAA
Warranty Limited Lifetime* Lifetime Coverage is defined by the greater of whichever condition below applies:

  • Seven (7) years after product is no longer made by FLIR
  • Ten (10) years from date of purchase
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