IQRF Wireless Challenge III

The IQRF Alliance announced a worldwide contest IQRF Wireless Challenge III in the best new wireless applications. The contest closes on 21st May 2017 and the final competition of the best projects will be held at the IQRF Summit 2017, Prague in June 2017. The contest just joined new partners ranking among the most renowned technical companies.

Auto-calibration function CO2

Sensors usually have a built-in auto-calibration function that provides an automatic periodic recalibration of the sensor to the fresh air. This eliminates the aging of the sensor and ensures a long-term stability of parameters.

Sensors of dangerous gases

Carbon monoxide poisoning, which threatens people, can be of two types: continuous or sudden. The systematic poisoning, which can be very slow, occurs when people are in the room where constantly leaks CO.

Combined sensors

Combined sensors are designed to measure the quality of the indoor air, which make it possible to measure several physical quantities at the same time. According to the measured values ​​of the monitored variables is then possible to control the ventilation units. The advantage of the combined air quality sensors is very simple and cost-saving installation in the air ducts.

Humidity sensors

Air humidity is a meteorological element that describes the amount of water vapour in the air that is contained mainly in the lower levels of atmosphere and that is originated by evaporation from large bodies of water, soil, plants, animals, etc.


Concentration of CO2 in the air is a good indicator of a stuffy indoor air and corresponds very well with the number of people residing in this close space.

Why is it beneficial to have the air quality sensor, if you already have a ventilation

Air quality sensors precisely regulate the ventilation, which is a big advantage in public buildings with a variable number of people inside. They help to save energy and therefore cost.

Poor air quality at exhibitions

Graph that shows the concentration of CO2 at the fair Aquatherm, which took place in the autumn of 2012 at the new exhibition halls in Letňany.

Frequent measurements of CO2 are not enough

Regulation of the indoor air quality is a prerequisite not only for the well-being and high working performance. Contamination of the indoor air in buildings is often even higher than the outside air pollution. We can not therefore take into account only the concentration of CO2.

Intelligent ventilation systems managed by a real need

What is the difference between the unregulated ventilation and the VAV ventilation system (From the English phrase: variable air volume) and DCV (from the English phrase: demand controlled ventilation)? The article describes the advantages and disadvantages of the functioning of the system. VAV system is explained on the specific example in our company. It is described the initial regulation of the system and its operation during several years. Ventilation is regulated here by means of the air quality sensors, which are directly in our company.

Carbon dioxide in the interior – real measurements

Our company conducted a survey in kindergarten, school and office. We placed the air quality sensors to the classrooms and offices. Were were the values of carbon dioxide the worst? Maybe the results will not surprise you, but is it correct that children spend so much time in closed rooms where the air quality is often alarming? The survey, which we conducted in the bedrooms shows that even in the night the air quality is not better, rather worse. This means that more than half of the day we breathe a poor quality air. Do you think it's okay?

Recommendations for placement of air quality sensors

Practical advice for placing of indoor air quality sensors. Install the sensor so that you ensure the most accurate measurement!

Alarm for the presence of the poisonous carbon monoxide (CO)

Indicator and the effective home alarm H450 for the presence of the deadly poisonous carbon monoxide (CO) that is produced by the incomplete or incorrect fuel combustion in boilers, fireplaces, stoves, gas stoves, or the incomplete chimney flue due to the improper installation or adverse weather conditions, will warn on time the user yet on the minimum concentration of this gas without color and smell and saves his life. Ensure your quiet sleep with the alarm H450EN!

What principled do the air quality sensors work on?

Are you lost in the technical terms associated with measuring the concentration of different substances in the air? Sensors for measuring CO2, CO, volatile organic compounds, etc. operate on three fundamental principles from which lately is the most commonly used the NDIR principle. What does NDIR mean and how do the sensors work on this principle and on other ones?

Smart ventilation that saves your money

Constantly turned on heating and above it an open window because there is an unbreathable air in the room is! Or closed window not to heat unnecessarily, but such unbreathable air that one can not be longer in the room. Do you know these situations? And do you know what smart ventilation is?

How to ventilate in a restaurant where people smoke?

Read about how you can save costs that are incurred due to the uncontrolled ventilation in restaurants (and similar facilities) thanks to the cigarette smoke sensors - ADS SMOKE.