MO55
‐
en
‐
GB_V1.0
02/16
5
Display
Lock
Press
the
Display
Lock
button
to
freeze
the
displayed
reading.
The
icon
is
visible
on
the
display
when
Display
Lock
is
active.
Press
again
to
return
to
the
normal
operating
mode.
Beeper
ON/OFF
The
beeper
defaults
to
ON.
To
switch
the
beeper
OFF,
press
and
hold
the
Display
Lock/Audible
Beeper
button
until
the
icon
disappears.
When
the
beeper
is
active
the
audio
display
icon
will
be
visible.
Pin
‐
Mode
Self
‐
Test
Turn
on
the
meter
and
set
the
meter
to
Pin
mode
Wood
or
Building
materials
and
then
touch
the
electrode
pins
to
the
contacts
through
the
holes
at
the
top
of
the
Protective/Test
cap.
Expected
result:
Wood
17.0
to
19.0%;
Building
15.5
to
17.5%
When
the
meter
reads
outside
of
these
ranges
please
replace
the
battery
and
retry.
If
the
meter
continues
to
read
outside
of
these
ranges,
the
meter
should
be
returned
for
service.
Pinless
Mode
Comparison
Measurements
While
holding
the
meter
against
a
known
dry
surface,
turn
on
the
meter.
Press
the
Mode
(M)
button
to
step
to
the
preferred
setting,
blinking
wood
or
blinking
building
material
icon.
The
meter
will
now
read
0%
(relative/offset
reading).
Now
move
the
meter
to
other
areas
to
test
to
find
higher
levels
of
moisture.
Maintenance
Battery
Replacement
When
the
battery
status
icon
appears
empty
or
flashing,
replace
the
battery.
1.
Remove
the
rear
battery
compartment
cover
by
pushing
the
compartment
latch.
2.
Replace
the
9V
battery
observing
correct
polarity.
3.
Replace
the
compartment
door
securely.
4.
Dispose
of
battery
responsibly
and
within
applicable
legal
regulations.
Never
dispose
of
used
batteries
or
rechargeable
batteries
in
household
waste.
As
consumers,
users
are
legally
required
to
take
used
batteries
to
appropriate
collection
sites,
the
retail
store
where
the
batteries
were
purchased,
or
wherever
batteries
are
sold.
Disposal:
Do
not
dispose
of
this
instrument
in
household
waste.
The
user
is
obligated
to
take
end
‐
of
‐
life
devices
to
a
designated
collection
point
for
the
disposal
of
electrical
and
electronic
equipment.
Care
and
Cleaning
When
the
instrument
is
not
in
use
please
keep
the
protective
cap
in
place.
Store
the
meter
in
a
stable,
dust
‐
free
environment;
out
of
direct
sunlight.
Remove
the
battery
from
the
instrument
if
the
meter
is
to
be
stored
for
long
periods
or
if
the
battery
power
symbol
appears
empty
(or
flashing)
on
the
display.
To
clean
the
meter
case,
wipe
with
a
damp
cloth
do
not
use
solvents
or
abrasives.
To
clean
the
pins,
wipe
carefully
with
a
damp
cloth
to
remove
residue;
allow
to
dry
well.
Shop for Extech products at:
1.877.766.5412
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.com
