Overview: This product is an air quality detector, which can detect CO2, temperature and humidity for you. It combines sensors with real-time monitoring of Carbon dioxide (CO2), temperature and humidity on the display. Features: The Carbon dioxide detector can accurately and quickly detect the indoor CO2 content to protect your health. At the same time, it provides real-time monitoring of indoor temperature and humidity. Using non-scattering infrared technology, high measurement accuracy, fast response, and the resolution is up to 1ppm. It can accurately detect CO2 in the air, and the measurement range up to 400-5000ppm. The indoor air carbon dioxide meter has a 4-color LED indicators as an air quality warning. Different color indicator lights will flash according to the carbon dioxide content, making the air quality more intuitive. The 1200mAh rechargeable battery can provide 240-360 minutes of standby time and can be charged by Type-C charging port. Comes with a full-color large screen to real-time monitor carbon dioxide changes. Portable size, easy to carry and can help us to detect gas quality in bedrooms, living rooms, kitchens, offices, cars, schools, hotels, etc. Specifications: Material: ABS Color: Black, White(Optional) Display Mode: LED Digital Display + LCD Screen + Backlight Mode Detection Range: 400-5000PPM Applicable Temperature: 1-70 Detection Method for CO2: Virtual Infrared Measurement Accuracy: 0.2 Resolution: 1PPM Charging Port: 5V Type-C Battery Capacity: 1200mAh CO2 Indication: 0-799ppm: Green Light Flashing 800-1199ppm: Yellow Light Flashing 1200-1599ppm: Orange Light Flashing 1600-1999ppm: Red Light Flashing Above 1999ppm, 4-light Flashing Product Size: 9.0*7.0*3.5cm/3.54*2.76*1.38in Product Weight: 106g/3.74oz Package Size: 14*12.5*4.2cm/5.51*4.92*1.65in Package Weight: 179g/6.31oz Packing List: 1* Detector 1* USB Charging Cable 1* User Manual