The Shallow Depth scale is designed to have a field penetration of up to 10mm (0.4 inches).
Shallow depth penetration allows for:
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the elimination of substrate influence when testing the moisture conditions of the coverings,
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greater accuracy and precision of the readings within the coverings.
This non-destructive accuracy and precision is comparable to actual pin readings. While the Shallow Depth scale eliminates the influence of any substrate beyond 10mm (0.4 inches), the regular depth does not eliminate the surface coating. The regular depth gives readings from the surface to a depth of up to 30mm (1 1⁄4 inches).
Using the Dual-Depth functionality by switching between the appropriate ‘regular depth’ scale and shallow depth scale, allows for a comparative of ‘surface’ versus ‘surface + core’ moisture. Shallow Depth reads the surface or top 10mm only, ‘Regular depth’ scales read the surface and the substrate up to 30mm. A comparative of moisture conditions both ‘within the materials’ and ‘within and behind the materials’ can be made on this basis.