13 GB
Reference values for humidity
expressed in per cent by weight
Num-
ber
Material
Measuring
range
dry borderline too humid
1
birch, beech, cherry,
larch, spruce
6–44 % < 12 % 12–15 % > 15 %
1
oak, pine, maple,
ash, Douglas fir
6–44 % < 15 % 15–20 % > 20 %
2
Cement screed,
concrete
1.4–7.4 % < 2 % 2–4 % > 4 %
3
Anhydride screed,
plaster
0.0–4.1 % < 0.5 % 0.5–1 % > 1 %
4
Cement mortar
0.8–5.1 % < 2 % 2–5 % > 5 %
5
Lime mortar
0.4–3.7 % < 2 % 2–3.5 % > 3.5 %
6
Brick
0.0–8.5 % < 1 % 1–3 % > 3 %
Note: When measuring under the measure-
ment range, the display shows ‚0.0%‘ or
‚Lo‘. For measurements above the measure-
ment range, the display shows ‚Hi‘.
Remove the protective cap
1
.
Press both measuring pins
2
against the
surface at the same time. After 1–2 seconds
you can read the percentage value.
If you are taking a measurement in an area in
which you cannot read the display, press
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