Extech MO50A Medidor de humedad sin pines para madera, pladur, hormigón, yeso, mampostería

Building inspectors, restoration contractors, and woodworkers rely on the Extech MO50A to quickly assess moisture levels in wood, drywall, concrete, plaster, and masonry without leaving pinholes. Its pinless RF technology scans up to 19mm deep, making it ideal for checking sub-surface moisture before painting, flooring, or remediation work.

Key specifications

• Pinless measurement technology (RF) — no surface damage
• Measurement depth: 0.75" (19mm)
• Relative moisture range: 0 to 99.9 with 0.1 resolution
• Tri-color LED visual alarm (green/yellow/red) and audible alarm with user-settable threshold
• LCD with backlight, data hold, auto power off after 10 minutes
• Powered by one 9V battery (included)

Why choose it

The MO50A offers fast, non-invasive moisture detection with clear visual and audible alerts, helping you identify problem areas at a glance. Its compact design and simple one-button operation make it suitable for both professionals and DIY users.

Ideal use cases

• Checking moisture in wood before finishing or installation
• Locating moisture behind drywall or plaster
• Assessing concrete and masonry for water intrusion
• Verifying dryness after water damage restoration

Good to know

The meter operates in temperatures from 0 to 50°C (32 to 122°F) and up to 80% relative humidity. A low battery indicator alerts you when replacement is needed.