Features: The carbon dioxide detector ensures accurate detection of carbon dioxide levels. Its intelligent gas analyzers utilizes a high quality tvoc sensors for precise measurements. This durable detector features a reliable detection module, strong anti interference capability, and low power consumption. It provides real times readings of temperature, humidity, and battery on its large screen display. Suitable for adults, the carbon dioxide detector is perfect for monitoring indoor air quality in bedrooms and living rooms. Keep your loved ones safe and comfortable by ensuring optimal conditions. Take control of your indoor environment with the portable carbon dioxide detector. Its user friendly designs, easy to read display, and long lasting battery make it a convenient choice for anyone seeking freshs and healthy air. Use the carbon dioxide detector to maintain proper ventilation and prevent discomfort caused by excessive carbon dioxide. Suitable for homes, offices, schools, and other indoorspaces. Specifications: Material:ABS Size:Approx.90x35x70mm/3.54x1.37x2.75inch Color:White/Black Built-in lithiumbattery: 1200mAh 3.7V Charging: 2-3 hours Available for 240-360 minutes Package Includes: 1 Set Air Quality Detector note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.