Like most organisations we use cookies on our site, these allow us to improve your experience on our site, provides us with measurement and analytical data, and allows us to make use of the latest digital marketing capabilities - if you want to know more about cookies and how you can control them see our cookie policy here, if you are happy for us to use cookies then please click the button opposite.

FLIR CM275 Thermal Imaging Clamp Meter

The FLIR CM275 clamp meter combines thermal imaging with electrical measurement into powerful inspection, troubleshooting, and diagnostic tools

Next Day Delivery (subject to availability)

£638.00 exc. VAT £765.60 inc. VAT £786.00 inc. VAT
  • Batteries Supplied
  • Case Included
  • Thermal Range -10 °C to +150 °C
  • 160 x 120 pixels
  • Three Selectable Colour Palettes
  • Switch Between °F and °C
  • Auto Off
  • FreeDelivery
  • 30DayMoneyBack
Required Fields
  • Description
  • Features & Specification
  • Resources
  • Delivery

FLIR CM275 Thermal Imaging Clamp Meter

The FLIR CM275 Thermal Imaging Clamp Meter combines accurate measurement of electrical parameters with FLIR’s state-of-the-art thermal imaging technology. It can measure AC/DC current up to 600A via its 35mm jaw whilst the meter can also perform contact measurement of voltage (1000V), resistance (6kΩ), and capacitance (1000µF). Other functions include diode testing and inrush current measurement for assessing the start-up phases of motors. VFD mode is perfect for motor drives and true RMS measurement makes AC parameters more accurate.

In addition to its advanced measurement functions, the FLIR CM275 has a 160 x 120 pixel thermal sensor which measures surface temperature from -10˚C to 150˚C with ±3˚C or 3% accuracy. The 150mK thermal sensitivity means that temperature differences of just 0.15˚C can be depicted on screen across a 50˚ x 38˚ field of view. A laser pointer helps the user direct the camera and there is the choice of iron, rainbow and greyscale palettes.

FLIR CM275 Thermal Imaging Clamp Meter

It is easy to select the function on the FLIR CM275 using the simple dial. Other buttons allow ranging, fine adjustments and different measuring modes such as min/max recording and data hold. Results and thermal images are shown on the 2.4” screen and both readings and images can be saved to clamp meter’s internal memory. Files can then be wirelessly transferred via Bluetooth® to the user’s smartphone using the FLIR Tools or FLIR InSite apps.

The practical design of the FLIR CM275 makes it suitable for working in tricky or cramped conditions. The integrated torch illuminates the area in dark cabinets and the slimline clamp jaws can fit into awkward cavities. It is drop tested to 2m and is safety rated as Cat III 1000V / Cat IV 600V. The clamp meter benefits from a ten-year manufacturer’s warranty.

The CM275 Comes Supplied With:

  • FLIR CM275 Thermal Imaging Clamp Meter
  • 3 x AA batteries
  • Premium Cat IV silicone test leads
  • Quick start guide
  • Instruction manual for FLIR CM275

FLIR CM275 Thermal Imaging Clamp Meter

Key Features:

  • Thermal imaging allows you to quickly scan for overheating system components, then use the test functions to troubleshoot and diagnose the fault
  • Scan entire targets for electrical issues with 160 × 120 thermal resolution
  • Use advanced electrical features including VFD mode, true RMS, and LoZ
  • Wirelessly connect to the FLIR InSITE professional workflow management tool to streamline inspections and simplify data collection, sharing, and reporting
  • Store electrical measurements and thermal images internally, for later review
  • Thermal imaging capability helps spot overheating components in circuitry
  • Measure AC/DC current, AC/DC voltage, resistance and capacitance

FLIR Comparison Table

CM275 CM174 CM74 CM72
IGM Resolution 19,200 Pixels 4800 Pixels N/A N/A
Display Counts/Type 6000/2.4" Colour TFT 6000/2" Colour TFT 6000/Backlit LCD 6000/Backlit LCD
Jaw Opening 1.38 in. 1.38 in. 1.38 in. 1.38 in.
AC/DC Voltage 1000 V 1000 V 1000 V 600 V
AC/DC Current 600 A 600 A 600 A 600 A
VFD Yes Yes Yes N/A
LoZ Yes Yes Yes Yes
Resistance 6.00 6.00 6.00 6.00
Data Storage 10 Files (40K Readings) ,
100 Images

About FLIR

FLIR Systems - The World's Sixth Sense

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 systems, visible-light imaging systems, locator systems, measurement and diagnostic systems, and advanced threat detection systems. Our products improve the way people interact with the world around them, enhance public safety and well-being, increase energy efficiency, and enable healthy and entertained communities.

 Resolution 160 x 120 (19,200 pixels)
Temperature Sensitivity 150mK
Temperature Accuracy 3°C or 3%
Temperature Range 14 to 302°F (-10 to 150°C)
Field of View 50.0° x 38°
Focus Fixed
Thermal Imaging Palette Iron, Rainbow, Grayscale
Continuity Check 30Ω
Data Logging & Storage 10 sets of 40K scalar measurements, 100 images
Jaw Opening 35mm (1.38in) 1250 MCM
Electrical Specifications
AC/DC Volts Range: 1000V
Accuracy: ±1.0%
AC/DC Amps Range: 600.0A
Accuracy: ±2.0%

Delivery Notices

Updated March 2021

During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time so we have taken the decision to
temporarily limit our services rather than let our customers down. We hope you will understand our position on this and we apologize unreservedly for the inconvenience we know it will cause.

Please note that ALL orders placed before 3:00pm are shipped same-day (unless additional services are required).
The stated transport times above have some scope for adjustment built-in for the Covid-19 situation. Carriers themselves also have their own extended workload and limitations at this time which are beyond our control.

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring
calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch
this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service  Price 
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT - Order by 3:0pm FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT - Order by 3:0pm £4.75
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 3:0pm      £7.75
Saturday ANYTIME Delivery - Order by 3:0pm £9.95

New Postage Map Sept 2018>

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable.