APP can't support Chinese.
It shows PM 2.5 levels real time and changes colour from red to green based on the PM 2.5 levels.
Mini size and light weight
Owning small size and light weight, it is easy to carry and convenient to use.
High-precision Laser Sensor
Its built-in hight precision laser sensor can accurately see the microscopic world, the smallest of 0.3m microns particles. It can accurately reflect the air quality.
Wireless connection: Wi-Fi IEEE 802.11b / g / n 2.4GHz