Air Quality Monitor 09 Guard EDGE

Displays temperature, humidity, levels of Carbon Dioxide, Particulate Matter, Formaldehyde Gas and Total Volatile Organic Compounds.

CO2, PM 1.0/PM2.5/PM10, Formaldehyde Gas (HCHO), Total Volatile Organic Compounds (TVOC),  humidity and temperature

4.3” LCD screen display, USB port, low battery warning and alarm function

Small size and weight (235g)

Sampling time of 1.5 seconds

Air Quality Index (AQI)

Main features of air quality monitor 09 GUARD EDGE


Dimensions: 14.5 x 7.8 x 9.7 cm
Weight: 235g
Storage temperature: -10°C to 60°C
Power source: Lithium battery with 3000 mAh capacity 5V DC power charging via micro-USB port

Range of measurements

Atmospheric pressure: 86Kpa – 106Kpa

Relative humidity: 20% – 85%

Detection temperature: -10°C to 50°C

CO2 measuring range: 400 – 5000 PPM

PM1.0 / PM2.5 / PM10 measuring range: 0 – 999 ug/m3

HCHO measuring range: 0.000 – 1.999 mg/m3

TVOC measuring range: 0.000 – 9.999 mg/m3

Indoor air quality monitor

Thanks to these carbon dioxide monitors, it is possible to determine whether the air we breathe is healthy or whether indoor ventilation needs improvement.

When we breathe, we expel CO₂, which accumulates in unventilated interiors. To give you an idea, the concentration level outdoors is approximately 420 ppm (parts of carbon dioxide per million), and indoors, it is considered excellent up to 700 ppm, according to health recommendations published in 2020.

The higher this figure, the more of the air we breathe has been previously breathed by someone else. And that dramatically increases the risk of contagion. But although it is a variable that is being given special attention in the wake of the coronavirus and air pollution, it affects many other aspects, such as tiredness, drowsiness, and concentration. Hence the importance of considering clean air free of harmful particles.

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