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Klein Tools ET140 Moisture Meter is designed to non-invasively detect hidden relative moisture content up to 3/4-Inch (19 mm) depth. Easily select between materials with mode button to test surface of drywall, masonry, hardwood, and softwood. The ET140 has easy viewing with bright, reverse-contrast display and LED bar graph.

Features | Data Logging, Low Battery Indicator |
|---|---|
Included | Batteries |
Material Compatibility | Concrete, Drywall, Wood |
Power Source | Battery Operated |
Probe Type | Pinless |
Returnable | 90-Day |
Manufacturer Warranty | Please refer to the attached warranty document in the Product Overview section above under Info & Guides. |
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Klein Tools Cat. No. ET140, Pinless Moisture Meter may show high readings on vinyl flooring because it can detect up to 3/4-inch deep and pick up moisture or adhesive in the concrete below. For best results, compare with a known dry area; adding a small spacer between the tool and the flooring may also improve accuracy.
The Klein Tools Cat. No. ET140, Pinless Moisture Meter detects relative moisture in materials like drywall, masonry, hardwood, and softwood. It can be used on concrete (masonry), but provides relative readings only, intended for comparison and indication of moisture, not exact moisture content.
Klein Tools Cat. No. ET140, Pinless Moisture Meter should be set to Hardwood mode when measuring under laminate flooring, as laminate is a high-density wood-based material. Please note the meter has a maximum sensing depth of approximately 3/4", so readings may reflect moisture in the subfloor beneath the laminate.
While it is not designed to be used for tile, the Klein Tools Cat. No. ET140 Pinless Moisture Meter may produce some results when used for this application. The recommendation for this use would be to use the masonry setting to provide a relative reading on a known dry area as a baseline and compare to a suspect area. However, depending on the underlayment used, there may be a false positive that will max out the meter if there is metal mesh or similar material underneath the tile. Another non-invasive option to check for moisture would be a thermal imager.
Yes, Klein Tools Cat. No. ET140 Pinless Moisture Meter can detect moisture content up to 3/4-Inch deep. With a plaster wall, you should get a baseline by measuring a known dry area to establish a "normal" reading and then compare that reading to suspected damp areas.
Yes, the Klein Tools Cat. No. ET140 Pinless Moisture Meter will test for moisture under laminate flooring. It measures moisture content up to 3/4 in. deep.
Klein Tools Cat. No. ET140 Pinless Moisture Meter may register moisture if the outside of the firewood is wet (rain, snow, condensation), even if the core is relatively dry. A tip to get the most reliable result is wipe the surface dry, split the log and measure the core, taking multiple readings and averaging them.
The Klein Tools ET140 Pinless Moisture Meter is designed for moisture detection, which can be an indicator for risk of mold, but it does not detect mold.
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