Uneven wood, wood which is narrower than
the sensor surface, or wood which is thinner
than the minimum wood thickness cannot be
measured.
Depending on the HM9 model, the measur-
ing surface and depth of your moisture meter
differ.
The specimens must have the following mini-
mum size and material thickness:
Model
WS1
WS5
WS13
WS25
DUO 5
DUO 25
Note: If the specified values are undercut,
fault-free measurement is not possible.
• The measuring surface must always be
covered entirely by the specimen.
• The measuring surface must be applied
evenly on the specimen.
HM9 WS1 | WS5 | WS13 | WS25 | DUO
Min. dimensions
80 x 47 mm
75 x 35 mm
80 x 48 mm
108 x 68 mm
60 x 15 mm
108 x 68 mm
Operation
Specimen
Min. material thick-
ness
0.5 mm
5 mm
13 mm
25 mm
5 mm
25 mm
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