Tuya Air Quality Monitor Portable Smart air Quality Tester [Multi-Function Air Quality Monitor] This is a indoor air quality monitor that accurately detects carbon dioxide (CO2)temperature, and humidity in real time. It helps you stay informed about the air quality in your living environment at a glance. [Smart LED Color Screen] Air quality tester equipped with a high-definition color screen for real-time data display, making it clear and easy to read. It provides an overall assessment of environmental quality and tracks the average value of each gas, helping you quickly identify unsafe gases in the air. In alarm mode, the screen changes color to remind you to pay attention to the environment. Monitor the air quality anywhere built-in chargeable battery can provide 8hours power. Hear the air quality You may adjust the different value of CO2 to set the sound alarm and notification in APP. Color: White Material: ABS Package Contents: 1 x Tuya Air Quality Monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.