Ajax LifeQality Air Quality Sensor
A smart LifeQuality air quality sensor will help you assess the indoor air quality. It is important to monitor the level of humidity, CO2 and temperature, as it has been proven that poor air quality threatens health and reduces productivity. The Ajax sensor will provide the accuracy of measuring these indicators at the medical level. The user receives information from the air quality sensor in the application, where he can also configure automation scenarios for the device. With the help of scenarios, the user can control the switching on and off of the humidifier or ventilation if the atmosphere control quality sensor shows that the air quality can be improved.
The principle of operation of the Ajax indoor air quality control sensor
The indoor air quality control sensor transmits the received data using the Jeweller radio protocol at a distance of up to 1700 meters from the security system control panel or signal repeater, provided there are no obstacles. Jeweller technology provides two-way communication of the air quality sensor with the control panel of the security system and protects devices from forgery by block encryption of the signal with a floating key. Radio frequency hopping is used to prevent interference and jam the radio signal. This means that the device will switch to a clean signal when trying to jam the current one. The indoor air quality monitoring device is equipped with a built-in accelerometer that notifies if the device has been moved. The air quality control sensor is controlled and configured in the Ajax application for PC or mobile phones. The app also receives instant notifications from the sensor. The power of the air control sensor is regulated to reduce power consumption and radio interference. With the help of additional Wings wireless communication technology for backup communication with the security system center or the radio signal repeater, data packets are reloaded in case of an error during data transmission. If the indoor air quality control sensor loses contact with the control panel or the radio signal repeater, it remembers all the measurement values. After the connection is restored, all values will appear in the Ajax application.
Measurement of air indicators
The air quality control sensor monitors the following three indoor air quality indicators:
Temperature measurement
With the help of a sensitive element, a digital combined temperature and humidity sensor measures the indicators and transmits them to Ajax applications. The data is updated depending on the frequency of the control panel — sensor polls, but at least once a minute. The temperature is measured in the range from 0°C to +50°C, with an accuracy of ± 0.2°C.
Humidity measurement
Humidity indicators in a protected room are measured using a sensitive element of a digital combined temperature and humidity sensor. The user can track the values in Ajax applications and they are updated depending on the frequency of central sensor polls, but at least once a minute. The measurement range of indicators is from 0% to 100%, with an accuracy of ± 1.8%. The received data is available in Device States in Ajax applications.
Measurement of carbon dioxide (CO2) concentration
The carbon dioxide level is measured using a sensitive element of a digital carbon dioxide sensor. Indicators are updated in Ajax applications depending on the frequency of sensor polls by the control panel, but at least once a minute. Carbon dioxide values are measured in the range from 400 to 5000 ppm with a measurement accuracy of ± 30 ppm or ± 3%. Data available in Device States in Ajax applications. The levels of assessment of air quality in terms of carbon dioxide in the air are as follows:
normal air: up to 1000 ppm
slightly polluted air: from 1000 to 1400 ppm
polluted air: from 1400 to 2000 ppm
critically polluted air: more than 2000 ppm.
The sensor also measures the effect of indicators on well—being:
from 1000 to 2500 ppm – general lethargy,
from 2500 to 5000 ppm – possible undesirable effects on health,
5000 ppm or more - the maximum permissible concentration for 8 hours of the working day.
