DISPLAY
Carbon dioxide display area
Temperature display area
Humidity display area
A1: Chemical formula CO
2
A2: Battery level indicator
A3: Set date (Month, day, minute,
A3
seconds)
A4
A4: Recording in progress indicator
A5: PPM Value. PPM stands for
A6
"parts per million" and shows
the concentration of carbon
dioxide in the ambient air.
A6: Year / hour
A7: Alarm enabled indicator
A8: Temperature
A9: °C / °F indicator
A10: Humidity unit (%RH)
A11: Humidity
8
A2
A1
PPM
CO2
MON-DAY
MIN-SEC
A7
REC
A9
A10
℃ ℉
%RH
A8
CO ² LEVEL:
CO ² level
Status
250 – 350ppm
Outside
350–1000ppm
Well ventilated, Ideal Typical level indoors with good ventilation. 1000 ppm =
A5
1000–1200ppm
Under ventilated
A11
2000–5000ppm
Very poorly
ventilated
above 5000ppm
Totally unacceptable
Description
Normal outdoor air level.
Recommended maximum level in a closed room. Considered
maximum comfort level in many countries.
Poor air quality - requires ventilation.
General drowsiness, discomfort and odors.
Danger! You may experience severe headaches, vomiting/
nausea, and dizziness within 20 minutes.
Danger! Headache and dizziness in 5 to 10 minutes.
Increased risk for health damage by prolonged exposure.
EN
9