The end of bad air - CO2 alarm Airsecure provides reliable warning of increased CO2 concentration indoors Bad air indoors due to excessive carbon dioxide concentration can cause headaches, nausea or a general feeling of unease. The CO2 alarm reliably measures the CO2, temperature and humidity in the room and displays the current air quality. In case of increased CO2 concentration, Airsecure warns with an indication on the display and optionally with an alarm sound. Wherever people are, they breathe and thus emit CO2. If there is too much carbon dioxide in the room, there are also many aerosols in the air. This can, for example, lead to an increased risk of infection within a room. The Airsecure CO2 alarm can be installed on the wall or placed upright on a table or shelf. The integrated battery is charged with the supplied USB cable. - OLED display - LED color display of the current air quality - CO2 sensor service life max. 10 years - Measuring range CO2 0-5,000 ppm - Alarm event displ