This WiFi 15 in 1 air quality monitor is a portable device that measures AQI, CO, CO2, PM0.3, PM1.0, PM2.5, PM10, formaldehyde (HCHO), TVOC, temperature, and humidity. It features a 2.8-inch TFT color screen and app control for real-time air quality monitoring and remote management. The device supports alarm limits, sleep mode settings, and detailed historical data exploration. It also has a semiconductor sensor for accurate measurements and can connect to smart plugs to control external devices. The product is made of plastic and has a 2000mAh polymer lithium battery with a standby time of about 10 hours.