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FLIR
MR77 5-1 Moisture Meter


Flir MR77 Pinless Moisture Pyschrometer is a Moisture Meter & Hygrometer in one rugged tool. It‘s everything you need in a Moisture Pyschrometer for moisture remediation or HVAC trouble shooting!

Part Number:
MR77

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Manufacturer's RRP

£669.00
802.80 incl. VAT)
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  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support

 

 

 

FLIR MR77 Pinless Moisture Psychrometer

Fast, accurate moisture diagnostics for remediation, HVAC, and building inspection professionals.

The FLIR MR77 is a powerful all-in-one solution designed to simplify moisture detection and environmental analysis. Whether you‘re working in moisture remediation, HVAC, or property surveying, the FLIR MR77 Moisture Meter combines multiple tools into one rugged, easy-to-use device—helping you work faster, smarter, and with greater confidence.

👉 Request a quote today and discover how the FLIR MR77 can improve your workflow.

Maintenance engineer using the MR77 Moisture Meter on a wall

 

All-in-One Performance with the FLIR MR77

Investigate five essential functions in a single handheld instrument:

  • Pinless moisture detection for non-destructive testing
  • Pin probe for precise, contact-based readings
  • Relative humidity and ambient temperature measurement
  • Infrared thermometer with laser targeting
  • Psychrometric calculations including dew point and condensation

This Moisture Meter is ideal for identifying damp, diagnosing building issues, and monitoring drying processes.

 

▶ Watch the Pinless Moisture Psychrometer in action:

Thumbnail for the FLIR MR77 Moisture Meter and Hygrometer Video

 

Accurate Moisture Detection

With both pin and pinless modes, the FLIR MR77 offers flexibility across a wide range of materials:

  • Pinless moisture range: 0 to 99.9 (relative)
  • Pin moisture range: 0 to 99% WME
  • Measurement depth: up to 19mm

Quickly scan surfaces without causing damage, then switch to the pin probe for detailed analysis. The FLIR MR77 Moisture Meter ensures reliable moisture readings for both initial surveys and in-depth inspections.

 

Environmental and Thermal Insights

The FLIR MR77 goes beyond standard moisture meters by providing full environmental diagnostics:

  • Relative humidity: 0 to 99% RH (±2.5%)
  • Ambient temperature: -18°C to 77°C
  • IR temperature: -20°C to 200°C

The integrated infrared thermometer helps detect temperature variations linked to hidden moisture, while psychrometric calculations support accurate condition assessment.

 

 

Built for the Demands of the Job

The FLIR MR77 is engineered for durability and long-term reliability:

  • Double-moulded, rubberised housing
  • Drop-tested to 2 metres
  • Field-replaceable temperature and humidity sensors

A clear large LCD ensures easy viewing of data on-site, even in challenging conditions. The FLIR MR77 Moisture Meter is built to perform wherever your work takes you.

 

Applications:

The FLIR MR77 is widely used for:

  • Water damage restoration
  • HVAC diagnostics
  • Building surveys and damp inspections
  • Construction and facilities management

 

❓ Frequently Asked Questions (FAQ)

Q1: What is the FLIR MR77 used for?

A. The FLIR MR77 is used for detecting moisture, measuring humidity, and analysing environmental conditions in buildings and materials.

Q2: Does this Moisture Meter damage surfaces?

A. No—when used as a pinless moisture meter, this unit enables non-destructive testing, making it ideal for finished surfaces.

Q3: Can the FLIR MR77 connect to mobile devices?

A. Yes, it features Bluetooth connectivity and METERLiNK® for wireless data sharing.

 

Get Started Today

Upgrade your inspection capabilities with the FLIR MR77. The FLIR MR77 Moisture Meter delivers the accuracy, speed, and reliability professionals demand.

👉 Contact us now for pricing and expert advice.

Note: Be sure to check the official datasheet before buying, and the user manual before using any test equipment. Need training? Just reach out - we’re happy to help.

 

Comparison Chart for: FLIR MR77 5-1 Moisture Meter

MR77MR160MR176MR265MR277
Thermal Imaging
IR Resolution (IGM)80 × 6080 × 60160 × 120160 × 120
Field of View51° × 38°51° × 38°57° × 44°55° × 43°
Thermal Image PalettesIron, Rainbow, Ice, GrayIron, Rainbow, Ice, GrayIron, Rainbow, Arctic, White-hot, Black-hotIron, Rainbow, Arctic, White-Hot, Black-Hot
Display
LCD with LED Backlight
Colour QVGA Display2.3 in 64K TFT graphic2.3 in 64K TFT graphicQVGA (320 × 240 pixels) 2.8 in color TFT graphical displayQVGA (320 × 240 pixels) 2.8 in. color TFT graphical display
Moisture Detection
Moisture Measurement (Pin and pinless)
Pin Moisture Range AccuracyWood groups (1-9): Wood groups (1-9):Wood groups (1-9):Material groups (1-11):Material groups (1-11):
7% - 30% MC (±1.5% MC)7% - 30% MC (±1.5% MC)7% - 30% MC (±1.5% MC)7% - 30% MC (±1.5% MC)7% - 30% MC (±1.5% MC)
30% - 100% (Reference Only)30% - 100% (reference only)30% - 100% (reference only)30% - 100% (reference only)30% to 100% (reference only)
Pinless Moisture Range0 to 99.9% relative0 to 100% relative0 to 100% relative0 to 100% relative0 to 100% relative
Relative Humidity Accuracy0% - 10% (±3%) 10%- 90%(±2.5%)0% to 100% (±2.5%)
10% - 90% (±2.5%)
90% - 99% (±3%)
Pinless Moisture DepthUp to 19 mm (0.75 in)*Up to 19 mm (0.75 in)*Up to 19 mm (0.75 in)*Max of 19 mm (0.75 in)Up to 19 mm (0.75 in)
Pin Moisture Material Types9 wood groups9 wood groups9 wood groups11 material groups11 material groups
General
Laser Pointer
Laser Pointer with IR temperature
Saved Image File Format.BMP with values overlaid.BMP with values overlaidRadiometric JPGRadiometric JPG
.CSV Stored Data Format
Stored Image Capacity20 points internal storage9999 img9999 img15000 img15000 img
IR Temperature-20 to 200°C (-4 to 392°F)0°C to 100°C (32°F to 212°F)0°C to 100°C (32°F to 212°F)
ConnectivityBluetoothBluetooth & METERLiNK
Temperature/RH Sensor CalculationsVapor Pressure, Relative Humidity, Temperature, GPP, Dew PointVapor Pressure, Relative Humidity, Temperature, GPP, Dew PointVapor Pressure, Relative Humidity, Temperature, GPP, Dew Point
Battery1x 9 VInternal rechargeable Li ionInternal rechargeable Li ionRechargeable 3.7 V nominal, 5400 mAh LiPoRechargeable 4.2 V, 5400 mAh LiPo
Drop Test2 m (6.6 ft)3 m (9.8 ft)3 m (9.8 ft)2 m (6.6 ft)2 m (6.6 ft)
*Depending on material under test

 

Accessory Code Description Price (Ex VAT)
MR02 Replacement MR77 Pin Probe £32.99 ADD
MR05 Impact Pin Moisture Probe for MR77 £71.99 ADD
MR10-2 MR10-2 Moisture Meter Case £54.99 ADD

 

 

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