Extech MO220 Wood Moisture Meter can take measurements using the integral pin electrodes (replaceable pins) or a heavy duty remote probe (included) with an automatic temperature compensated (ATC) readings when used with the temperature probe.
The Extech MO100 moisture meter is a convenient, pocket size moisture detector perfect for wood, drywall, and other building materials, it has a dual LCD display that displays moisture and air temperature simultaneously.
The Extech MO250 Wood/Building Material Moisture Meter is a Relative pinless moisture reading for non-invasive measurement from 0.0 to 100.0 with 0.1 resolution, The device measures depths from 0.78" (20mm) to 1.6" (40mm) below the surface.