FLIR MR277 Imaging Moisture Meter (substitute for FLIR E5xt) – 5 new units avail as of June 16, 2020


Consider the FLIR MR277 as an alternative for the FLIR E5xt.  Same image resolution at 160×120 pixels;  similar thermal sensitivity at 0.07 C; built in laser pointer and LED light, Wi-Fi connectivity, visual and IR image capture.  Same price as the E5xt at $1399.99.

Combining advantages of a high-resolution infrared imaging sensor, FLIR MSX® image technology, and a laser pointer, the all-in-one MR277 building inspection system helps you quickly locate, clearly identify, and easily document critical moisture and building envelope issues.



The MR277 is the first FLIR building inspection system to combine the advantages of Infrared Guided Measurement (IGM) and FLIR’s patented Multi-Spectral Dynamic Imaging (MSX) with advanced environmental sensors to help you quickly locate, clearly identify, and easily document problems. IGM technology and a laser pointer isolate the area where you can use the integrated pinless moisture sensor for non-invasive readings or external pin probe for invasive measurements. With automatically calculated environmental readings and a field-replaceable humidity/temperature sensor, the MR277 lets you finish the job and minimize downtime. Connect to external devices with METERLiNK® and use FLIR Tools® to enhance troubleshooting and reports.

• Scan large areas for moisture, air leaks,
and more with the 160 × 120 thermal camera

• Easily identify both the context and the issue;
MSX embosses physical details on thermal
images for clear interpretation

• Pinpoint the exact location of problems with
the integrated laser

• Scan for moisture with the integrated
non-invasive pinless sensor

• Capture exact measurements with an external
pin probe (included) and wide range of optional
moisture probes

• Simplify documenting issues with the
integrated digital camera

• Create a single file documenting thermal, visual,
MSX, hygrometer readings, and laser location

• Download images and data via USB cable or
upload via Bluetooth® to the FLIR Tools® App



Internal Memory –  8 GB
Laser Orientation – Single laser pointer to center of thermal image
Packaging Size – 55 × 31 × 32 (21.6 × 12.3 × 12.4 in)
Sensitivity – <70 mK
Typical Usage – 4 work weeks
Warranty – 10 year
Agency Approvals – CE, FCC Class B, RCM


Drop test – 3 m (9.8 ft)
Mixing Ratio – Range 0 to 560 GPP (0.0 to 80.0 g/kg) / Basic Accuracy ±2 GPP (0.25 g/kg)
Relative Humidity – Range 0 to 100% / Basic Accuracy 2.5% RH

Vapor Pressure – Range 0.0 to 12.0 kPa / Basic Accuracy ±0.05 kPa


Continuous Run Time – 16 hours max
Digital Camera – 2 MP, 70.5° × 56° FOV
Display Type – QVGA (320 × 240 pixels) 2.8 in. color TFT graphical display
Image Modes – Thermal, Visual, MSX®
Image Update Speed Frequency – 9 Hz
Imaging Detector – FLIR Lepton microbolometer
Spectral Response – 8 to 14µm
Thermal image minimum focus distance – 10 cm (4 in)
Thermal image palettes – Iron, Rainbow, Arctic, White-Hot, Black-Hot
Field of View [W x H] – 55° × 43°
MSX – Embosses visual details on full resolution thermal image
Thermal Image Resolution [W x H] – 19200 pixels (160 × 120)


Air Temperature – Range 32 to 122°F (0 to 50°C) / Basic Accuracy ±1.1°F (±0.6°C)
Dew Point – Range -30°C to 50°C (-22°F to 122°F) / Basic Accuracy ±1.0°C (±1.8°F)
Image Calibration – Automatic with manual lock scale option
Measurement Resolution – 0.1
Pin Moisture – Range 7% to 30% / Basic Accuracy ±1.5% MC / Range 30% to 100% / Basic Accuracy Reference only
Pin Moisture Groups – 11 Material Groups
Pinless Measurement Depth – 19 mm (0.75 in) max
Pinless Moisture Range – 0 to 100
Response Time Pin Mode – 750 ms
Response Time Pinless – 100 ms


Auto Power Off – Programmable: Off, 1, 5, or 20 minutes


Certification Standards – EN 61326 (EMC), EN 60825-1 Class 2 (Laser)


Battery – Rechargeable 4.2 V, 5400 mAh LiPo


Includes: FLIR MR13 Replaceable Temperature and Relative Humidity Sensor, FLIR MR02 Standard Pin Probe, quick start guide, international USB charger, USB cable, and lanyard


Saved Image File format – Radiometric JPEG
Stored Image Capacity – 15000 images


MR277 Datasheet Feb 2020

Hands-on training is your key to achieving the most success with Infrared!  Zoom CRT classes now available. Click below to review the schedule and sign up.  First 3 classes offered sold out.


Call 800-221-0163 to learn more or email

Complete your infrared investment with professional thermography training and certification.  Both onsite and regionally offered classes scheduled regularly in most states including AZ, NV, WA, CA, TX, IL, WI, TN, FL, GA, NC, SC, VT, AL, NJ, PA, UT, NY, NH, OH, IN, KY and IL. classes scheduled less frequently yet can still be available in OR, ID, MT, WY, ND, SD, NE, OK, MO, MI, MS, ME, NH, VA, RI, MA, CT, DE, NM, HI and AK. Onsite Classes can be scheduled anywhere in the USA including Alaska and Hawaii with sufficient lead time.


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