5-in-1 Indoor Air Quality Monitor, Professional & Accurate CO2, TVOC, HCHO, Humidity& Temperature Particle Counter, for Home, Office, School, Hotel, Car Air Quality Tester Black

Protect Your Every Breath: Since clean air means a lot to every one, the 5-in-1 air quality monitor will be your best choice. It can accurately monitor CO2, TVOC, HCHO, humidity& temperature. You can monitor the environment at any time.
Accurate & Reliable: Equipped with a fast-responding and sensitive high-performance chip, the air quality monitor can precisely capture the weak currents generated during electrochemical reactions. Dual color & voice alerts keep you informed of the current air quality conveniently.
Low Power Alerts : Built with 1000mAh rechargeable battery and packaged with one 5V USB cable, the standby time can last for 10 hours. Never be anxious about low power.
Safety Design: The mesh design allows for better heat dissipation during operation, preventing the device from getting hot, and more accurate measurement data.
Warm Notice: Please notice that this air quality monitor is designed for indoor spaces, so please close the door & windows before testing. Or else the data may not be accurate. We recommend using the monitor and keeping it working for at least 60 minutes before reading the data.