User's
Guide
Hygro-Thermometer
Clock
Model
445702
Introduction
Congratulations
on
your
purchase
of
the
Extech
445702
Hygro-Thermometer
Clock.
This
instrument
displays
Time
(12/24
hour
clock),
Temperature
(C
or
F),
and
Relative
Humidity
%
simultaneously.
The
housing
can
be
wall
mounted
or
placed
on
a
table-top
using
the
built-in
tilt
stand.
Features
include
MIN/MAX
displays
and
programmable
Alarm
Clock.
Careful
use
of
this
device
will
provide
years
of
reliable
service.
Specifications
Display
Ranges
Resolution
Accuracy
Power
supply
Low
Battery
Dimensions
Weight
Three
LCD
views
for
Time,
Temperature,
&
Relative
Humidity
Temperature:
-10
to
60
o
C
(14
to
140
o
F);
Relative
Humidity:
10
to
85%
Temperature:
0.1
o
C/F;
Humidity:
1%
Humidity:
±
6%
in
the
25
to
80%
range
&
from
0
to
50
o
C
(32
to
122
o
F)
Temperature:
±
1
o
C
from
-10
to
50
o
C
and
±
1.8
o
F
from
14
to
122
o
F
One
(1)
‘AAA’
1.5V
Battery
Battery
icon
appears
on
the
lower
LCD
when
the
battery
is
to
be
replaced
109
x
71
x
20mm
(4.3
x
2.8
x
0.8")
Approx.
113g
(4
oz.)
with
battery
Description
1.
Clock
display
2.
Temperature
display
3.
Humidity
display
4.
Temp/Humidity
Sensor
5.
MAX
/
MIN
button
6.
RESET
/
AL
(Alarm)
button
7.
CLOCK
button
8.
ADVANCE
button
9.
Alarm
on-off
switch
10.
Alarm
speaker
11.
Tilt
Stand
12.
Battery
compartment
13.
Temperature
units
switch
14.
Wall
mount
H
y
g
r
o
–
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r
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o
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r
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l
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.
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om
Fin
d Q
ua
lit
y P
ro
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