LCD size: 128 x 82 mm
CO² measuring range: 400 ~ 5000 PPM
CO² level indicator: good (400~700 PPM) / normal (700~1000 PPM) / poor (1000~5000 PPM)
CO² monitoring alert
Temperature range: -9.9°C - 50°C
Humidity range: 20% ~ 95%
Max/min record of CO², temperature & humidity value
Time and calendar display, time alarm function
Power supply: 5V1A adaptor or 3 x AA batteries
Data below for your reference:
400~600ppm background (normal) outdoor air level.
600~1,000ppm Typical level for footprint with good air exchange.
1,000~1,500ppm Start room ventilation.
1,500~2,000ppm Levels associated with drowsiness and complaints of poor air. Ventilation is recommended!
2,000~5,000ppm Levels associated with headaches, lethargy and stagnant, stale, stuffy air. Difficulty concentrating, difficulty concentrating, increased heart rate, and mild nausea may also occur.
Ventilation is highly recommended!
>5,000ppm exposure may cause severe hypoxia, resulting in permanent brain damage, coma and death.
Immediate ventilation is required!