5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester – Confined Space Clean Air Monitor（Black）

【Give protection to Your Each Breath】 Since clean air means a lot to Each one, the 5-in-1 air quality monitor will be your best option. It can as it should be monitor CO2, TVOC, HCHO, humidity& temperature. You’ll 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 all the way through electrochemical reactions. Dual color & voice alerts keep you informed of the present air quality conveniently.
【Low Power Alerts】Built with 1200mAh 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 all the way through 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 is probably not accurate. We recommend the usage of the monitor and keeping it working for no less than 60 minutes before reading the data.