3-in-1 multifunction air quality monitor with logging function can detect real-time CO2 concentration, temperature and humidity in your living environment. Adopting sensitive sensor, it provides quick and accurate data in the digital LCD screen. Built in with 750mAh rechargeable battery, it can be widely in home, office, classroom, hotel, gym, greenhouse, warehouse and more indoor places.

Digital Carbon Dioxide Monitor Air Quality Detector CO2 Indoor Sound Light Alarm Gas Meter With Temperature Humidity Measure