[7-in-1 Air Quality Tester]: This detector can be used to test and display the concentration of PM2.5, PM10, carbon dioxide, TVOC, HCHO, temperature and humidity at the same time. Real-time detection, automatic refresh data. With alarm function, support alarm threshold setting. [High Accurate Sensors & Chip]: Uses high-precise sensors, with high sensitivity, superior interference resistance ability, stable working performance, with low power consumption. Adopts high working performance chip for accurate data processing. [Digital Color Display]: This air quality tester with a large digital color display, display backlight on/off adjustment, you can the data is clearly visible and the screen is not dazzling. [AQI Air Quality Level Indication Function]: Equipped with air quality level division function, use different color to show the different quality of the air being monitored, allowing you to more accurately and more visual know the current air conditions. [Strong Heat Dissipation]: Hundreds of ventilation holes reserved on the housing not only accelerate the convection between the air and the machine, thereby realizing effective detection, but also provide a fine heat dissipation effect. [Wide Applications]: Built-in lithium battery with low power consumption and long endurance. USB interface for convenient charging, suitable for long-term use in various scenarios, such as agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, and etc. Colour:White Material:ABS Package Contents: 1 * Air Quality Meter 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.