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FLIR MR77 Bluetooth Connected Moisture Meter

  • $699.99 USD
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The FLIR MR77 Moisture Meter performs all the critical and advanced measurements you demand for moisture remediation or HVAC and includes Bluetooth wireless capability. Equipped with a pinless moisture sensor and pin probe, a temperature and relative humidity sensor, and an IR thermometer, the MR77 has everything you need in one convenient tool. Built rugged with field-replaceable sensors, the MR77 is engineered to reduce downtime and help you get more done in less time.

All the Sensors You Need

Featuring an integrated pinless moisture sensor, a remote pin-type probe for contact moisture readings, a temperature and relative humidity sensor, and an IR thermometer for fast non-contact measurements, the MR77 is a convenient all-in-one water damage utility tool.

  • Replaceable Sensor Thermo Hygrometer   Field-replaceable temperature/relative humidity sensor can be removed from the meter and exchanged when needed, so you can continue to work and reduce downtime
  • Wireless Connectivity   Bluetooth METERLiNK® technology wirelessly integrates moisture readings on your image with select FLIR thermal cameras
  • Warranty    Industry-leading limited lifetime warranty
  • Pin and Pinless    Integrated pinless moisture measurements for fast detection, and external pin probe included with expandable probe options
  • Moisture Meter
  • MR01 Temperature and RH Sensor
  • MR02 Pin Probe
  • 9 V Battery
  • User Manual
Model Number MR77
  Range Basic Accuracy
Pinless Moisture 0 to 99.9 Relative
Pinless Moisture Depth Max 0.75 inches (19mm)  
Pin Moisture 0 to 99% WME +/- 5%
Relative Humidity 0 to 99% RH +/- 2.5% RH
Sensor Temperature -18 to 170°F, -28 to 77°C +/- 3.6°F, 2°C
IR Temperature -4 to 392°F, -20 to 200°C +/- 3.5%
IR Distance to Spot Ratio 8 : 1 in  
IR Emissivity 0.95 (fixed)
Vapor Pressure 0 to 20.0kPA +/- 2%
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General Information
Bluetooth Range Max 32 ft (10 m)
Drop Test 6.5 ft (2 m)
Warranty Limited Lifetime
Certifications CE, FCC

*Disclaimer: Specifications are subject to change without notice. Availability of camera models and accessories subject to regional market considerations.



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210 reviews

Shipment arrived on time and as ordered.

La Crosse Technologies V10-TH

The La Crosse V10-TH Wireless Weather Station (Model No. C84343) is absolutely wonderful. The setup was easy with the Quick Setup Guide provided with the unit. The packaging contains additional support information with the website and phone number if there are questions. I especially liked the daily high low readings and the color on the unit! Tech Instrumentation provided great communication as to the availability of the product and shipping details. If fact, it arrived one day prior to the estimated delivery date. I would absolutely recommend this product and Tech Instrumentation for anyone looking for an indoor/outdoor weather station!


I needed a replacement as my original sensor no longer worked. This one works fine.

Excellent Customer Service!

I can't way enough about the customer service at Tech Instrumentation. I was looking for a hard to find specialty part, which the manufacturer told me would need to be custom made. After calling and speaking with a representative at Tech Instrumentation, the part was located and order was filled, right over the phone. Delivery was prompt, and instrument is working great. Highly recommended company for lab supplies!

Worked great

Put batteries in and worked great