One for 3 functions, you can intuitively understand the air quality you breathe with air quality including CO2, temperature and humidity
Carbon dioxide monitor can detect the air on real-time and when CO2 concentration 1999-above Four warning lights flashing at the same time to alarm
The CO2 monitor has a smart color display, different font colors display different air quality, green 400-799ppm, yellow 800-1199ppm, orange 1200-1599ppm, red 1600-1999ppm, 2000ppm above four colors flash at the same
The sensor module with TVOC sensor to accurately monitor carbon dioxide, highly recommend to use it with USB charger.1200mAh large capacity battery for long working , Type-C charging interface, easy charging
Portable Co2 monitor with compact design suitable for monitoring the air quality at home, schools, office buildings, hospitals, restaurants, shopping malls, factories, hotels, laboratories etc