6
To adjust the sensitivity level,
1. Press [
]. The [
L E V E L
A D J
] indicator will blink.
2. Every press to [
], the sensitivity level will change
according to the order : Normal-Low-High-Normal..
3. The unit will also return to normal display after 10 seconds.
Note that the new sensitivity level only applies to future samplings
but not the old ones in memory.
BAD AIR WARNING
When the air quality is considered bad, the [
] indicator will
light up. The [
] indicator will also appear to show the room needs
immediate ventilation. These indicators will remain lit until the air
quality improves.
If the ALARM ON/OFF switch is set on ON, an alarm will also go
off continuously for 10 seconds. If the air quality does not improve,
a beep will be emitted every minute for the next 7 minutes and every
10 minutes afterward. To stop the alarm, press any button. To disable
the feature, set the switch to OFF.
TEMPERATURE AND HUMIDITY
The current temperature and humidity are displayed at all times.
To show the maximum or minimum readings in memory, press [
] or
[
], respectively. Press the button again to go back to the current
readings. The unit will also do so automatically after 5 seconds.
To clear the memory,press and hold [
] and [
] for two seconds.
°C/°F SWITCH
The temperature unit is selected on the °C/°F switch. Slide the switch to
°C for degree Centigrade or °F for degree Fahrenheit. The selected unit
will apply to the current temperature as well as temperatures in memory.
HOW TO USE THE BACKLIGHT
Press [
] to turn on the backlight for 20 seconds.
THE RESET BUTTON
This button is used only when the unit is operating in an
unfavorable way. Use a blunt stylus to hold down the button. All
memories will be erased.
SPECIFICATIONS
Temperature measurement:
Measuring range :
-5°C to +50°C (+23°F to +112°F)
Operating range :
-5°C to +50°C (+23°F to +112°F)
Relative humidity measurement :
Measuring range:
25% RH to 95% RH
Power :
Main
:
3V AC/DC Power adapter
Back up
:
2 × UM-3 or “AA” 1.5V alkaline battery
Dimension
:
161.0 × 95.0 × 47.0 mm (H × W × D)
Weight
:
197.80g (without battery)