We all know that the quality of air is very vital to our health, this product can detect CO2, temperature and humidity. You can use it in your home, office or wherever you want to monitoring the air quality, come and try it, it will not let you down. Features: This product can not only detect the CO2 for you, but also can detect HCHO, TVOC, temperature and humidity, which can give you the data that you care about. A wide application: you can use this product for home air detect, car air detect, office air detect, hotel and so on. With the temperature unit between Celcius and Fahrenheit switch function, and the 24 hours data real time monitoring function. Adopt 3D circulating air converction function and Independent TVOC sensors to give you a more accurate data. This product is in small size, so you can carry it with you to anywhere you want to use. Specifications: Material: ABS Measuring ranges: CO2: 400-5000PPM HCHO: 0~1.712mg/m TVOC: 0~12.50mg/m Temperature ranges: -20~60 Humidity: 20-99% Application technology: air natural flows Error floatin: 3%-30% Working voltage: 5V Battery: 1 * lithium battery, 1200mAh (included) Item size: 118 * 70 * 34mm / 4.6 * 2.8 * 1.3in Package size: 160 * 80 * 45mm / 6.3 * 3.1 * 1.8in Package weight: 226g / 8.0ounce Packing list: 1 * Air Quality Detector 1 * User Manual 1 * Data Cable