PM2.5 Tester Air Quality Detector Palm Size Air Quality Tester High Accuracy Air Quality Monitor for PM2.5 & TVOC & AQI & PM with Light & Sound Reminder

Features:
Practical Air Quality Detector: real time monitoring the concentration of PM2.5, TVOC, air quality, AQI CN, AQI US, and particle, 1.4-inch TFT full color screen display(with 128RGB*128pixel resolution).
In-built Rechargeable Battery: the product has a built-in 1000mAh lithium battery for repeated using, easily to be charged through the USB interface on the right side.
Sound Reminder: when the current air quality level is in serious pollution(250ug/m3), the device will make an alarm sound to remind you.
Light Reminder: the change in the color of the breathing light varies according to the current air quality level, and the speed of the breathing also varies with the quality level of the air.
Multiple Languages: the product supports 5 user languages (Chinese, English, Korean, Japanese, Russian), you can switch among those languages as needed.
Other Functions Features: LED breathing light ON/OFF switching, alarm buzzer ON/OFF switching, industry-leading sensor ensures accurately testing results, portable mini palm size, etc.