This multifunctional detector allows you to better understand the current environment. It will detect the current PM2.5, CO2, TVOC, HCHO, temperature and humidity for you, also show you the time, date, week and AQI on the big color screen. If you are looking for this tool, just have a try, it will not let you down. Features: Large Display: Large color TFT screen allows you to browse the data more clearly, makes it more convenient for elderly and children, giving you a better experience. Portable Size: The small size of this tool is very convenient for everyday use, you can put it on your desktop without taking up too much space. Tuya APP Remotes Viewing: After connect with your mobpilephone APP correctly, you can view the data on your mobilephone easily, wherever you are. Multiple Detection&Display: This aire quality detector will detecting the PM2.5, CO2, TVOC, HCHO, temperature and humidity for you. It also will show the AQI, time, date and week for you. You can setting the 2 set of clock alarm according to your needs, and the calendar funtion should be achieved after connecting to the WiFi. Built-in large capacity rechargable lithium battery to supplys power, you can recharge it in time. Specifications: Material: ABS Color: black, white (optional) PM2.5 measuring ranges: 0-9999ug/m³ PM2.5 resolution ratio: 1ug/m³ TVOC measuring ranges: 0-3mg/m³ TVOC resolution ratio: 0.001mg/m³ CO2 measuring ranges: 400-5000PPM HCHO measuring ranges: 0-3mg/m³ Temperature measuring ranges: 0-60 Humidity measuring ranges: 0-99%RH Battery: 1 * lithium battery, 1200mAh (included) Item size: 90 * 70 * 45mm / 3.5 * 2.8 * 1.8in Item weight: 132g / 4.7ounce Package size: 142 * 130 * 50mm / 5.6 * 5.1 * 2.0in Package weight: 270g / 9.5ounce Packing list: 1 * Air Quality Monitor 1 * Manual 1 * USB Cable