45170CM
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Introduction
Thank
you
for
choosing
the
Extech
Model
45170CM,
5
‐
in
‐
1
Environmental
Meter.
The
45170CM
measures
Air
Flow,
Air
Velocity,
Relative
Humidity,
Temperature,
and
Light
Level.
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.
Meter
Description
1.
Vane
Airflow
Sensor
2.
Type
K
Thermocouple
Input
Jack
3.
Display
4.
Power
/
ESC
Button
5.
Unit
/Zero/
Button
6.
C°/F°
/
Lux/Ft
‐
cd
/
Area
/
▲
Button
7.
Light
Sensor
8.
RH
and
Air
Temperature
Sensors
9.
Hold
Button
10.
Rec
/
Enter
Button
11.
Mode
/
▼
Button
Note: Battery compartment on back of meter.
Power
ON
‐
OFF
Press
the
Power/ESC
button
to
turn
power
ON
or
OFF.
The
meter
will
perform
a
short
self
‐
test
when
it
is
switched
ON.
If
the
meter
does
not
switch
ON,
please
check
the
status
of
the
battery.
