Temtop CO2 Air Quality Monitor Indoor Carbon Dioxide Meter with Temperature and Humidity Sensor PM2.5 Particle Counter…

Amazon.com Price: 29.99 (as of 01/12/2022 09:46 PST- Details)

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PRECISION CO2 SENSOR: This CO2 meter adopts SenseAir advanced carbon dioxide sensor to accurately detect CO2 levels in your home and remind you in time to take actions to avoid the harm to your health caused by high concentration of carbon dioxide
4 IN 1 MULTIFUNCTION MONITOR: Not only can detect carbon dioxide, but also detect PM2.5 particles in the air and indoor temperature and humidity, All-IN-ONE, ideal choice as an air quality monitor in your home.