3
RHT30_TH30
‐
en
‐
GB_V1.0
(11/16)
5.
Status
LED
indicator
(red/green).
Refer
to
the
Status
LED
Indicator
Description
later
in
this
section.
6.
MAX
‐
MIN
button.
Refer
to
the
Button
Descriptions
later
in
this
section.
7.
Sensors
(Thermistor
internal
air
temperature
and
capacitive
RH
sensor)
8.
Power
and
Datalog
Start/Stop
button.
Refer
to
the
Button
Descriptions
later
in
this
section.
9.
MARK/Battery
life
button.
Refer
to
the
Button
Descriptions
later
in
this
section.
10.
USB
plug
11.
Battery
compartment
(CR2032
x
2)
on
rear
12.
Wall
hanging
mount
(rear).
Mounting
screw
supplied.
Button
Descriptions
POWER
button
.
Short
press
to
power
ON
or
OFF.
Note
that
the
datalogger
cannot
be
switched
OFF
while
datalogging
is
in
progress.
START/STOP
button
(same
physical
button
as
the
Power
button
above).
Press
and
hold
for
5
seconds
to
start
or
stop
the
datalogger.
Note
that
the
datalogger
will
not
start
unless
it
has
been
configured
using
the
Logger
Configuration
Tool.exe’
program
as
described
later
in
this
user
manual.
Maximum
‐
Minimum
Reading
button
.
At
any
time,
short
press
to
step
through
the
highest
(MX)
and
lowest
(MIN)
readings
recorded
in
the
current
datalogging
session.
Bookmark
button
.
Manually
place
a
time
‐
stamped
‘bookmark’
in
the
datalog
report
by
pressing
and
holding
the
button
until
the
displayed
measurement
flashes
3
times.
Up
to
eight
(8)
bookmarks
can
be
saved.
Battery
Status
Note
:
Short
press
the
MARK
button
to
display
the
approximate
number
of
days
remaining
for
the
battery
life.
10
11
12
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