8
CO² LEVEL:
CO² level
Status
Description
250 – 350ppm
Outside
Normal outdoor air level.
350–1000ppm
Well ventilated, Ideal
Typical level indoors with good ventilation. 1000 ppm =
Recommended maximum level in a closed room. Con-
sidered maximum comfort level in many countries.
1000–1200ppm
Under ventilated
Poor air quality - requires ventilation.
General drowsiness, discomfort and odors.
2000–5000ppm
Very poorly ventilated
Danger! You may experience severe headaches, vomit-
ing/nausea, and dizziness within 20 minutes.
above 5000ppm
Totally unacceptable
Danger! Headache and dizziness in 5 to 10 minutes.
Increased risk for health damage by prolonged
exposure.
WALL MOUNT
Use the wall plugs and wall mounting screws to attach the device to your wall in horizontal or vertical
position.
CHARGING / START-UP
Insert the DC connector into the connection socket (8) of the device. Insert the mains plug into the power
outlet. The device is energized directly and begins preheating. The LCD displays a countdown of 7 sec-
onds. The buttons are not operational during this time. Once the countdown is finished the device enters
the normal measurement state.
SETTINGS MODE
Press the MODE button to enter the carbon dioxide alarm settings mode. Press or to choose the
PPM value when the alarm should start. Press the MODE button to confirm and exit the settings mode.
The default alarm value is 1200 PPM.
CARBON DIOXIDE ALARM
Press the Alarm button to activate or deactivate the carbon dioxide alarm. When you hear a small beep
sound, then the alarm is activated. The alarm will sound once the concentration of carbon dioxide reach-
es the alarm value. Press the alarm button again during an active alarm to deactivate the alarm sound.
