Extech Moisture Meters

The MO290 combines three instruments a restoration technician would otherwise carry separately: a pinless moisture meter, a psychrometer for temperature and relative humidity, and an infrared surface thermometer.

That matters because a drying decision needs all three together. Material moisture without ambient conditions does not tell you whether the material is going to keep drying.

The range covers the Extech MO290 pinless moisture psychrometer with IR, the MO290-RK water damage restoration contractor kit, and the MO290-HP hammer probe.

How to choose

Pinless finds it, pins quantify it. The MO290 reads a volume beneath the surface without marking it — ideal for scanning a finished floor. The MO290-HP hammer probe adds pin measurement at depth for timber and subfloor.

Buy the kit if you work restoration. The RK contractor kit bundles what gets bought separately within a month, in a case that survives a work vehicle.

Infrared reads surface temperature, not moisture. It is for finding cold spots and evaporative cooling that indicate wet material. Treating an IR reading as a moisture reading is a common and consequential mistake.

Surface preparation matters on pinless. The meter reads what is under the sensor, including fasteners and foil backing. A reading taken over a nail is meaningless.

The wider brand range is in Extech, survey instruments in Moisture Meters, spares in Moisture Meter Parts, and drying equipment in Structural & Heat Drying.