Kkmoon 5in1 Indoor Air Quality Monitor Portable Detector Accurate CO2 TVOC HCHO Temperature & Humidity black

Features: Comprehensive Monitoring: Measuring CO2, HCHO, TVOC, temperature and humidity, providing comprehensive analysis of indoor air quality to meet most indoor testing needs. 2.8inch TFT Color screen: Equipped with a 2.8 TFT color digital display screen, it clearly shows realtime air quality readings for easy understanding and tracking of changes. Easy to Use: Our indoor air quality monitor comes with a builtin 1200mAh rechargeable lithium battery and USB charging cable. It lasts 56 hours on a single charge and is recommended to be kept charged if you need to monitor your indoor environment for extended periods of time. Safe Design: Ventilation holes design can make the device better heat dissipation during operation, preventing the de