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FLIR CM174/CM275
Industrial Imaging Clamp Meters with IGM

The FLIR CM174 and CM275 clamp meters bring the power Infrared Guided Measurement (IGM) together with a range of electrical measurement features, so you can visually identify electrical problems and solve complex issues quickly. The CM275 also helps streamline inspections by allowing you to connect wirelessly to FLIR Tools or the new FLIR InSiteTM workflow management app. Whether you're inspecting electrical systems or servicing equipment, the CM174/CM275 can help you work faster, safer, and more efficiently.


The CM174/CM275 lead you straight to the problem through the power of thermal imaging. Visually identify hot spots without directly contacting the panels, cabinets, or cables that present safety hazards. And with IR resolutions up to 19,200 pixels*, you'll see the temperature differences that indicate the start of electrical faults before they become serious issues.

*CM275 model


Quickly verify problems, check loads, and validate hot spots thanks to the CM174/CM275's range of electrical and temperature measurement options. Both models offer a built-in laser and crosshair help you pinpoint problems, while the CM275's vibrant screen is 44% larger than the CM174's, for easier data and image viewing.


The new CM275 makes your work day even easier through wireless connectivity to the FLIR InSite professional workflow management tool. With this application, you can upload and organize electrical measurements and thermal images, share information with your team, and file instant reports while still in the field.




Up to 160 x 120 (19,200 pixel)* Lepton®thermal imager powers IGM technology for visual identification of electrical issues

Narrow Jaw

Critical components are often hard to reach, but the CM174 and CM275 have a narrow clamp jaw that's easier to work and gets accurate readings in cramped, hard-to-reach areas.

Advanced Features

Solve complex issues with True RMS, LoZ, VFD Mode, Inrush, and Smart Diode with Disable

Amperage and Voltage

Check the electrical load the components you're measuring are under to get a more complete picture of any issues you may find

Data Storage*

Save electrical measurements and thermal images internally, or upload over wireless connection to FLIR Tools or the FLIR InSite workflow management app

*CM275 model



Model Number FLIR CM174 FLIR CM275
Thermal Imaging
IR Resolution 80 x 60 (4,800 pixels)  160 x 120 (19,200 pixels)
Thermal Imaging Detector FLIR Lepton® microbolometer FLIR Lepton® microbolometer
Temperature Sensitivity 150 mK  150 mK
Emissivity Settings 4 Presets with custom adjustment  4 Presets with custom adjustment
Temperature Accuracy 3°C or 3%  3°C or 3%
Temperature Range -13°F to 302°F (-25°C to 150°C)  14°F to 302°F (-10°C to 150°C)
Field of View 50.0° x 38.6°  50.0° x 38°
Laser Pointer Yes Yes
Focus Fixed Fixed
Thermal Imaging Palette Iron, Rainbow, Grayscale Iron, Rainbow, Grayscale
Measurements-Both Models    
True RMS Yes  
Auto-ranging Yes, with manual range option  
  Range  Basic Accuracy
AC / DC Volts 1000 V ±1.0%
VFD AC Volts 1000 V ±1.0%
AC / DC LoZ V 1000 V ±1.0%
AC / DC Amps 600.0 A ±2.0%
VFD AC Amps 600.0 A ±2.0%
AC Inrush 600.0 A ±3.0%
Resistance 6.000 kΩ ±1.0%
Capacitance 1000 μF  ±1.0%
Diode Test 1.5 V ±1.5%
Flex Input AC A 3000 A ±1.0%
Flex Input Frequency Counter 10.00 kHz ±0.1%
Additional Measurements CM174 CM275
Continuity Check 600 Ω 30 Ω
Measuring Rate 3 samples per second 3 samples per second
Min/Max Yes Yes
LoZ Mode AC/DC 60.00 V, 600.0 V, 1000 V ±1.0%
LoZ Input Impedance 2.5 kΩ  
General Information
Connectivity 60.00 A, 600.0 A ±2.0%
Data Logging & Storage 60.00 A, 600.0 A ± 3.0%
Jaw Opening 60.00 A, 600.0 A ±2.0%
Auto Power Off 600.0 Hz, 6.000 kHz, 60.00 kHz ±0.1%
Worklights 600.0 Ω, 6.000 kΩ ±1.0%
Display Size 600.0 Ω ±1.0%
Battery 1-1000 μF ±1.0%
Drop Test 1.5 V ±1.5%
Safety Category Rating CAT III-1000V, CAT IV-600V CAT III-1000V, CAT IV-600V
Size (H x W x L) 43 x 89 x 241 mm (1.7 x 3.5 x 9.5 in) 48.5 x 97 x 255 mm (1.9 x 3.8 x 10 in)
Weight 426 g (15 oz) 460 g (16 oz)
Warranty 10 yrs on product and detector