1. Multi-function and multi-space detection 2. Monitor HCHO, TVOC, CO2, AQI 3. Real-time understanding of the degree of ambient air pollution, comprehensive protection of family health 4. LCD liquid crystal color sn digital display, display more clearly, full-color large sn, intuitive reading. 5. More convenient detection, ligent detection, scientific calculation 6. 1000 mAh large-capacity battery, 240-360 minutes standby time, can be charged repeatedly to save costs, USB charging port. 7. The use of new environmentally friendly materials, more comfortable to use, suitable for home, office, school and car use. It is convenient to place in every corner of the house to truly detect air quality problems in real time. Name: Air Quality Detector Working voltage: 5V Model: JSM-131SC Standby time: 240-360 minutes Charging duration: about 4 hours Error float: 3% -30% colour:Orange Material:plastic size:148*70*30mm Package Contents: 1 * Air Quality Tester 1 * USB cable 1 * English manual Only the above package content, other products are not included. Note: Light shooting 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.