The FLIR MR55 is a pin-based meter with wireless connectivity, which offers the convenience to view readings from a mobile device via the FLIR Tools® Mobile app. Thanks to a built-in library of 11 material groups, users can tune the meter to the appropriate test material to improve measurement accuracy. This library is easy to access on the website by scanning a QR code on the back of the meter with a mobile device.


Test from 11 material groups with pin probes. Measurements automatically compensate for ambient temperature.


Use Bluetooth® to view readings from a mobile device.


Features replaceable electrode pins, standard AA batteries, a backlit display, and a bright work light to help make your job seamless.


Model # MR55
Brand Flir Instruments

FLIR MR55 Specifications:

Measurements Moisture, relative humidity and ambient temperature
Moisture measurement type Electrical resistance
Display Backlit, multifunction LCD
Electrode length 0.4” (10mm)
Electrode pins Integrated, replaceable
Work light White LED
Auto Power OFF (APO) After 20 minutes
Power supply Two (2) 1.5V ‘AA’ batteries (rear compartment)
Low battery indicator
(100% to empty)
Operating Temperature 32 ~ 122°F (0 ~ 50°C)
Operating Humidity 85% Relative Humidity maximum
Housing material Impact resistant plastic
Drop-proof 2 metre
IP rating IP40
Safety Compliance CE, RCM
Dimensions 188 x 58 x 33mm
Weight 160g battery excluded


Function Range Accuracy
Moisture in wood Group 1~9 7 ~ 29% ± 2% MC*
30 ~ 99% Reference Only
Moisture in building materials Group 10 and 11 1~99% (Group 10)  
1 ~ 35% (Group 11) Reference Only
Ambient Temperature 32 ~ 122°F (0 ~ -50°C) ± 2°F (± 1°C)
Ambient Relative Humidity 0 ~ 10% ± 4%
10 ~ 85% ± 2%

Limited Lifetime Warranty

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