II TECHNICAL FEATURES
Measurement display :
Displays 4 digit LCD
Measuring range :
0~25% (VOL)
Resolution :
0.1% (VOL)
Measurement error :
±0.5%
Over measurement range display :
“OL”
Alarming method :
acousto-optic alarming
Working principle of the sensor :
source cell sensor
The service life of the sensor :
2 years
(it can then be replaced)
Operation temperature:
-10°C~40°C(14°F~104°F)
Storing temperature :
0°C~30°C (32°F~86°F)
Operating humidity :
0~99% RH
(relative humidity)
Storing humidity :
20%~80% RH
(relative humidity)
Power supply :
3x1.5VAAA
alkaline batteries
Batteries service life :
about 100 hours of
continuous use (when the backlight is off).
Dimension :
172 x 51 x 26 (mm)
Weight :
2
3
III PRODUCT DESCRIPTION
1. MODE ON :
Press
& hold for 2s to enable it
2. Position shifting button ( )
3. Digit (0-9) adjust button ( )
4. MODE OFF :
Press & hold for 2s to disable it
5. The first alarm (AL1) (yellow indicator)
6. The second alarm (AL2) (red indicator)
7. Buzzer
8. Display
9. Sensor
10.Battery
compartment cover
(push the cover
downwards to open it)
OFF AL1
AL2
O Alarm
2
Deterctor
MODE
ON
%Vol.
SCAN
888.8
ALA1 ALA2
KM 5490
7
4
5
6
1
2
8
3
9
10
