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Who breathes good air is healthier, happier and can do more. Headaches, dizziness and permanent fatigue are often due to a high concentration of CO₂ in the air. Aranet4 PRO monitor helps you monitor how stale and contaminated the air is in indoor spaces where many people are present such as in schools, offices and public buildings.
Note: To use Aranet4 PRO, you need the (Reciver) base station with the reference: TDSBWPA1.XXX. There is the Aranet 4 PRO version that does not need the base station please see
Covid-19 can be spread by aerosols that remain in the air for up to 9 minutes. Propoer ventilation can reduce the risk of Covid-19 infection. CO2 concentration can be used as an air quality indicator and can be monitored with sensors such as Aranet 4 PRO.
Aranet 4 PRO warns when the air quality has become unhealthy and you should take care of the airflow in the room.
You can only improve what you can measure!
Take care of the air you breathe with Aranet4 PRO. It is the first step towards healthier environment around you, your loved ones, friends and colleagues.
The monitor shows on the display the current CO₂ content of the room air, the temperature, humidity and the time.
The LED's illumination colour (Green, Wellow and Red) can be used to quickly evaluate and interpret the current CO2 readings. Alternatively, can be used an alarm signal in the event when a certain limit has been exceeded.
The importance of air quality for humans
The CO₂ concentration in indoor areas is deemed to be an essential indicator of suitable air quality. Carbon dioxide is a gas that is poisonous for humans and, depending on the concentration in the air, affects their performance, their well-being and their ability to concentrate. Even when there is a CO₂ concentration as low as 1,000 ppm, most people feel the air is not good and the above-mentioned disorders occur.
Optimal Locations for CO₂ Transmitters
See air quality: CO2 emissions (metric tons per capita)
See air quality:
World's Air Pollution