EA20-EN V1.8 3/14
2
Introduction
Congratulations
on
your
purchase
of
the
Extech
EasyView™
EA20
Digital
Hygro
‐
Thermometer.
This
device
measures
Humidity,
Temperature,
Dew
Point
temperature
and
Wet
Bulb
temperature.
Advanced
features
include
Manual
Datalogging
of
up
to
99
sets,
MAX/MIN
recording,
Relative
measurement
mode,
and
elapsed
timer.
Careful
use
of
this
meter
will
provide
years
of
reliable
service.
Meter
Description
1.
Humidity/Temperature
Probe
2.
Multifunction
LCD
with
bargraph
and
status
indicators
3.
Power
ON/OFF
button
4.
MX/MN
button
5.
DATA
HOLD
button
6.
Humidity
/
Temperature
select
button
7.
TIME
button
(for
MX/MN
elapsed
timer)
8.
Temperature
units
(C/F)
select
button
9.
DEW
POINT
temperature
select
button
10.
RELATIVE
mode
button
11.
WET
BULB
temperature
select
button
12.
MEM
key
manual
datalogging
control
key
13.
READ
key
manual
memory
data
reading
control
key
14.
keys
to
select
memory
location
Note:
The
battery
compartment
is
located
on
the
rear
of
the
instrument
9
3
6
4
7
8
5
2
1
