Features: [ Air Quality Tester]: This detector can be used to test and display the concentration of PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature and humidity at the same time. And also has WiFi function. [High Accurate Sensors]: Uses high-precise NDIR infrared carbon dioxide sensor, laser particle sensor, semiconductor sensor, optical sensor and distance sensor, with high sensitivity, superior interference resistance ability, stable working performance, with low power consumption. [LCD Color Display]: This air quality monitor with a LCD color display, it can automatically adjust the display brightness according to the surrounding brightness, so that the data is clearly visible and the screen is not harsh. Support switching the display content between HCHO & TVOC and PM1.0 & PM10 at power on. [Cellphone Tu ya APP Control]: Search for Tu ya APP in the application program, the device will enter the pairing state after the firsttime opening, and you can view the specific data on the APP after completing the connection. (Because it takes time to upload data, it is normal for the APP data to deviate from the real-time data of the detector.) [Wide Applications]: Real-time detection, automatic refresh data, with multi-use. Suitable for agricultural planting, greenhouse vegetables, production warehouse, material processing, , business offices, and etc. Specifications: Sensor: NDIR infrared carbon dioxide sensor, laser particle sensor, semiconductor sensor, optical sensor and distance sensor HCHO measurement ranges: 0-1.999mg/m TVOC measurement ranges: 0-9.999mg/m PM1.0/PM2.5/PM10 measurement ranges: 0-1000g/m;10g/m(0-100g/m)or 10%(100-500g/m) CO2 measurement ranges: 400-5000PPM; (50 + 5% reading) Temperature measurement ranges: 0-50; 1 Humidity measurement ranges: 0-99%RH; 5%RH Recharging : USB Type-C interface, 5V 2A Color: White Material: plastic Package Contents: 1 x Air Quality Monitor Meter 1 x data cable Only the above package content, other products are not included. Note: Light reflection 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.