Indoor Air Quality Monitor, Smart Air Quality Tester for TVOC CO2 with Temperature and Humidity Monitoring for Home Office

[Clear LCD Screen] The large LCD screen clearly displays the CO2 value, TVOC value, HCHO value, temperature, and humidity. [Portable and Rechargeable] Compact design with a carrying case, built-in 1800 mAh lithium battery, and easy charging via USB cable. [Customizable Settings] Switch between ℃ and ℉, with an adjustable alarm sound to suit your preferences. [Accurate and Reliable Sensor] Adopts a digital temperature and humidity sensor for high accuracy, stable performance, and a long service life. [Environmental Quality Assessment Function] Equipped with an environmental quality assessment function that displays appropriate levels based on the measured values.