Indoor Home CO2 Meter

Features:
Built-in advanced Infrared (NDIR) sensor can accurately detect CO2, temperature, and humidity.
1000mAh rechargeable battery ensures a long time using. It can be recharged by the included charging cable.
Professional sensors require only 1.5s sampling time. Large size display shows the readings clearly, with 6 levels of LED brightness adjustable.
CO2 alarm threshold can be set, and once the current value exceeds, the device will give out a beep sound.
Suitable for detecting carbon dioxide in the bedroom, living room, kitchen, office, car, school, hotel, campground, etc.
Note: During the first use, please Turn on the device and keep more than 24 hours, the device will automatically calibrate. (Do not power off and restart halfway when calibration.)