EXTECH
INSTRUMENTS
3
CO40
‐
en
‐
GB_v1.3
12/14
1
2
3
4
5
7
8
9
10
6
11
Meter
Description
1.
Sensors
2.
LCD
Display
area
3.
HOLD
Button
/
Up
arrow
button
4.
MODE
/
Left
Arrow
Button
5.
SET
Button
6.
AC
adaptor
jack
7.
Tripod
Mount
8.
POWER
( )
Button
9.
(Max
Reading)
/
Right
Arrow
Button
10.
UNIT
Button
11.
Down
Arrow
Button
Note:
Battery
compartment
on
rear
