Features: With the big LCD display screen, so you can see the data more clearly, which can give you a better using experience. This product can not only detect the CO2 for you, but also diasplay temperature and humidity for you. A wide application: you can use this product for home air detect, car air detect, office air detect and so on. This carbon dioxide meter adopt NDIR sensors, which can detect more accurately. Easy to operate: You just need to long press the button for 3 seconds to open or close the meter, even old people and children can learn to use it quickly. There are four different faces to indicate different air quality, it is easy for the old people and children to understand. Specifications: Material: zinc alloy+ABS Color: silver, black (optional) Temperature ranges: 1~70 Battery: 1 * lithium battery, 1200mAh (included) Detecting ranges: 400-5000ppm Accuracy: Temperature: 1 Humidity: 5% CO2: 5%50PPM Recharging port: Type-C 5V Item size: 81 * 33mm / 3.2 * 1.3in Item weight: 270g / 9.5ounce Package size: 148 * 138 * 49mm / 5.8 * 5.4 * 1.9in Package weight: 365g / 12.9ounce Packing list: 1 * CO2 Detector By the way,if you like our store,please add our store to your Favorite Stores.You can get our arrival and Discount information in time.