Finally, a CO2 measuring device made in Europe with dual-channel NDIR sensor for greater accuracy. Its metal structure gives it a quality finish and great robustness. All our devices are carefully calibrated, which makes them infinitely more reliable than any device made in China. Our device manufactured in our facilities can be sold at a very economical price in case of large quantity orders. Ideal for monitoring air quality in establishments and facilities open to the public, our meter is designed for confined public spaces, where it is important to control the quality and renewal of the air to guarantee the safety of visitors. It allows you to continuously monitor the indoor air quality by displaying the concentration of carbon dioxide (CO2) in the air as well as the temperature and relative humidity on its 2.8-inch LCD screen.