SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History

BREATHE EASILY: Aranet4 CO2 meter measures CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time, empowering you to make informed decisions for healthy ventilation. No wonder it is the top-rated indoor air quality monitor in Amazon’s CO2 monitor segment!
CABLE-FREE: The facility-efficient e-ink display guarantees an extended battery life of as much as 4 years for this wireless air quality monitor, ensuring worry-free monitoring without the effort of cables and cords.
EASY-TO-USE: The colour coding, prominent CO2 number at the display, and optional buzzer of this air quality meter alert you when the CO2 concentration becomes too high.
FREE & INTERACTIVE APP: A smartphone application for viewing and analyzing as much as 90 days of historical data out of your indoor air quality meter, complete with user-friendly graphs.
PREMIUM QUALITY: Aranet4 carbon dioxide detectors use nondispersive infrared sensor (NDIR) technology for essentially the most precise and reliable CO2 measurements. Made within the European Union.
ENJOY THE HEALTH BENEFITS: Air quality monitor indoor use helps people take better care of the atmosphere around them, leading to improved center of attention, mood, and overall well-being.