This detector can be used to test and display PM2.5, PM10, carbonic oxide, carbon dioxide, TVOC, HCHO, and AQI at the same time. Uses high-precise semiconductor sensor, with high sensitivity, superior interference resistance ability, stable working performance, with low power consumption. And also have time and date display and WiFi function. Tuya APP control, suitable for agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, and etc. Features: Portable Size: This monitor is small in size and you can use it on your desk without taking up too much desk space, also easy for you to carry. 7in1 Air Quality Tester: This detector can be used to test and display PM2.5, PM10, carbonic oxide, carbon dioxide, TVOC, HCHO, and AQI at the same time. And also have time and date display and WiFi function. Semiconductor Sensors: Uses high-precise semiconductor sensors, with high sensitivity, superior interference resistance ability, stable working performance, with low power consumption. Real-time detection, automatic refresh data, with multi-use. TFT Color Display: This air quality monitor with a large TFT color display for you to see the detecting data more clearly, you can get the results easily. AQI Air Quality Level Indication Function: The ball will change color according to the air quality index, and allowing you to more accurately and more graphic know the current air conditions. Cellphone Tuya APP Control: Search for Tuya 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.) Strong Heat Dissipation: Hundreds of ventilation holes reserved on the housing not only accelerate the convection between the air and the machine, thereby realizing effective detection, but also provide a fine heat dissipation effect. Wide Applications: Suitable for agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, and etc. Specifications: Material: ABS Color: black, white (optional) Battery: 1 * lithium battery, 3.7V, 2000mAh (included) Display: TFT color display Sensor: semiconductor sensor HOCO measurement ranges: 0-9.999mg/m TVOC measurement ranges: 0-9.999mg/m PM2.5 measurement ranges: 0-999g/m PM10 measurement ranges: 0-999g/m Carbonic oxide measurement ranges: 0-999PPM Carbon dioxide measurement ranges: 400-5000PPM AQI: 0-500 Recharging method: 500mAh USB Type-C interface Item size: 70 * 35 * 90mm / 2.76 * 1.38 * 3.54in Item weight: 130g / 4.59ounce Package size: 145 * 100 * 48mm / 5.71 * 3.94 * 1.89in Package weight: 185g / 6.53ounce Packing List: 1 * Air Quality Monitor 1 * Type-C Cable 1 * Guideline