Air Quality SB5 Monitor Terabee Air Quality SB5 Monitor measures CO2, particulate matter (PM 1, 2.5, 4, 10), and total volatile organic compounds (TVOC) index. Additionally, this monitor measures air temperature and relative humidity, ensuring the five most in-demand ambient metrics are measured. The measured data is directly integrated into the system via Wi-Fi® and HTTP/HTTPS data protocol. Terabee Air Quality SB5 Monitor has multifunction visual signals, including network status, air quality, and operation mode.