...and the world's first and leading manufacturer of Non-Dispersive Infrared (NDIR) Carbon Dioxide (CO2) Sensors. Telaire holds 30+ awarded patents in CO2 sensors, including the original automatic calibration algorithm - ABC Logic. In more recent years, Telaire has expanded its product line to include other air quality sensors, including Dust (PM2.5 and PM10) and Relative Humidity (RH) Sensors. Telaire products are used in commercial and residential building ventilation applications, consumer air quality devices for the home, and controlling air quality conditions in automobiles.