[Time, Date Display & Alarm Clock] Our air quality monitor can not only be used as a professional and accurate air detector, but also can be used as an alarm clock placed beside the bed, with date and time display and alarm clock function, to meet your various daily needs. [9 Air Quality Parameters] Our air quality detector contains 9 parameter displays, including the glance AQI level. You can choose to check each parameter or simply look at the AQI rating to learn the indoor air quality. [Upgraded Accurate Sensor] Our air detector abandons the unstable semiconductor sensor and choose the more stable and higher-precision infrared sensor. The measurement is more accurate. [Three Levels of Adjustable Light] Our air detector LCD screen has three levels of adjustable light(100%/40%/0%). You can adjust the light according to the surrounding light environment, so that you can see the parameters clearly during the day and avoid dazzling light at night. [Large-Capacity Battery] Our air quality monitor is equipped with a 2400 mAh large-capacity battery to meet your daily use. convenient and fast Type-C charging, no special charging cable is required. Colour:Black Material:ABS Size:About 112x78x35mm Package Contents: 1 x Air Quality Monitor Indoor 1 x Charging cable 1 x English manual 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.