EXTECH
INSTRUMENTS
2
RH35
‐
en
‐
EU_v1.1
7/14
Introduction
Thank
you
for
selecting
the
Extech
Instruments
Model
RH35.
This
device
is
shipped
fully
tested
and
calibrated
and,
with
proper
use,
will
provide
years
of
reliable
service.
Please
visit
our
website
(www.extech.com)
to
check
for
the
latest
version
of
this
User
Guide,
Product
Updates,
and
Customer
Support.
Safety
International
Safety
Symbols
This
symbol,
adjacent
to
another
symbol
or
terminal,
indicates
the
user
must
refer
to
the
manual
for
further
information.
Double
insulation
Safety
Notes
o
Remove
the
battery
if
the
device
is
to
be
stored
for
longer
than
60
days.
o
Never
dispose
of
batteries
in
a
fire.
Batteries
may
explode
or
leak.
o
Never
mix
battery
types.
Always
install
new
batteries
of
the
same
type.
Cautions
o
If
the
equipment
is
used
in
a
manner
not
specified
by
the
manufacturer,
the
protection
provided
by
the
equipment
may
be
impaired.
o
Batteries
can
contain
harmful
acids.
Low
batteries
should
be
changed
as
soon
as
possible
to
prevent
damage
caused
by
leaking.
o
Never
use
a
combination
of
old
and
new
batteries
together,
or
batteries
of
different
types.
o
Wear
chemical
‐
resistant
protective
gloves
and
glasses
when
handling
leaking
batteries.
o
Do
not
place
your
product
near
extreme
temperatures,
vibrations,
or
shocks.
o
Protect
device
from
moisture.
