Copyright
2009, Delmhorst Instrument Co.
Page 12 of 35
Note:
Readings between 0.1% and 0.5% indicate a sufficiently dry moisture level. Readings between
0.5% and 1% indicate a borderline situation. Readings greater than 1% indicate material that is
too wet for painting or wallpaper. A reading above 1% also indicates enough moisture present to
allow mold growth to occur but only if other factors are also present such as a high RH level and
food source.
USING SCAN MODE
You can also take a reference reading on drywall using the met
er’s
SCAN
mode
. To take a
reading,
firmly press the back of the meter onto the material to be tested while in
SCAN
mode.
This will display a relative reading that ranges between 0 and 300. Remember to establish a
baseline reading by taking a reading in an area you know to be unaffected, then take a reading in
the affected area and compare the two readings.
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