FLIR MR55 Pinless Moisture Meter for Building and Wood Materials

Building inspectors and restoration professionals rely on the FLIR MR55 to quickly assess moisture levels in walls, floors, and wood without leaving probe marks. Its pinless sensor scans up to 19 mm deep, delivering instant readings on a backlit display for fast, non-destructive evaluation.

Key specifications

• Measurement technology: Pinless (non-invasive)
• Building material moisture range: 1 to 99% relative
• Wood moisture range: 7 to 99% relative
• Measurement depth: Up to 19 mm (0.75 in)
• Display: Segmented LCD with backlight
• Auto power off: After 10 minutes
• Data hold: Yes
• Power source: 3x AAA batteries
• Operating temperature: 0 to 50°C (32 to 122°F)
• Storage temperature: -20 to 60°C (-4 to 140°F)
• Drop test rating: 2 meters (6.6 ft)
• User interface: Single button operation
• Low battery indicator: Yes

Why choose it

The MR55 combines a rugged, drop-tested design with simple one-button operation, making it ideal for both seasoned professionals and DIY users. Its non-invasive scanning protects surfaces while providing reliable moisture readings in a wide range of building and wood materials.

Ideal use cases

• Detecting moisture behind tiles, drywall, and flooring
• Assessing wood moisture before painting or finishing
• Water damage restoration and mold prevention inspections
• Verifying proper drying of construction materials

Good to know

The meter automatically powers off after 10 minutes to conserve battery life, and a low battery indicator alerts you when replacement is needed. Its compact size and single-button interface allow for quick, one-handed measurements in tight spaces.