With an infrared sensor (IR sensor) specifically for carbon dioxide.
The device is in normal applications maintenance-free, calibration usually not neccessary. If required, calibration can be carried out by a specialist.
Plastic housing with power supply unit. There is no need for an installation by an expert. The device can be put into operation simply by plugging the power supply unit into the socket outlet.
A traffic light on the housing displays the carbon dioxide concentration and with that air quality: green LED: CO2 concentration below 1,500 ppm; air quality o.k. yellow LED: CO2 concentration between 1,500 and 2,500 ppm; air of minor quality red LED: CO2 concentration above 2.500 ppm; bad air quality
Acoustic signals underline the optical ones.
Measuring range: 0-3,000 ppm +/- 2% MBE.
Measurable gas: Carbon dioxide (CO2).
New: Integrated data logger available now. Recording of the measured values: every 60 seconds for a time period of one week. The measured values can be analysed with a corresponding software on a personal computer. System requirements: Excel 2003.