SNDWAY SW-825 HD LED Digital Display Air Quality Analyzer Mini USB Rechargeable PM2.5 Detector Tester Gas Monitor Temperature humidity Meter

Features:
Compact and portable, easy to use and carry.
USB rechargeable design, which has fast charging speed and long service life.
Built in 580mAh lithium battery, quick charge in 30 minutes, fully charged use more than 4.5 hours.
When the instrument exceeds the alarm set value, the instrument will flash and display red data, and the alarm value can be set.
High precision laser sensor, accurate and sensitive, fast response.
Real-time monitoring, automatic shutdown, can measure PM2.5, temperature and humidity.
Suitable for vehicle, office, outings, home use, etc.