1、7IN SCREEN: The tester is equipped with a 7in screen, convenient for data viewing and monitoring, choose it with confidence! 2、DETECTABLE OBJECTS: The tester can measuring carbon dioxide, humidity, temperature, TVOC, PM2.5, PM1.0. 3、COLOR DISPLAY: The air quality and temperature and humidity level are indicated by color grading, which can be seen from a distance. 4、ACCURATE MEASUREMENT: Adopts premium industrial grade sensors, and the data is determined to 1, making the air detection more accurate! 5、ABS MATERIAL: Made of premium ABS material, the tester is strong, sturdy, wear resistant, scratch resistant and ensures a long life span. Item Type: Air Quality Detector Mode: PT02 Color: Silver Material: Fireproof ABS Large Screen Display: 7in LCD large screen Detectable: Carbon dioxide, humidity, temperature, TVOC, PM2.5, PM1.0 Temperature Detection Range: - 20 ℃ to 60 ℃; ±2℃ Humidity Detection Range: 5% to 95% RH; ±5%RH CO2 Detection Range: 400 to 5000ppm, accuracy 1ppm CO2 Detection Accuracy: ± 50ppm or ± 5% reading TVOC Detection Range: 0 to 20mg/m ³ PM1.0 Detection Range: 0 to 500 μ g/m ³ PM2.5 Detection Range: 0 to 500 μ g/m ³ Operating Temperature: 0 ℃ to 50 ℃ Operating Humidity: 0 to 95% (non condensing) Output Wiring: RS485 Applicable APP: For graffiti smart app Use: Household, kitchen, bar, restaurant, office, warm and wet greenhouse, etc. 1 x Air Quality Detector 1 x Charging Cable 2 x Manual