Features: Accurate Detection This indoor temperature and humidity carbon dioxide alarm (battery powered) features a high precision that precisely measures the concentration of carbon dioxide in the air, helping users monitor indoor air quality and take necessary actions to improve the environment. Multi function Measurement Apart from measuring carbon dioxide concentration, this product also provides temperature and humidity measurement functions. With just one device, users can conveniently monitor and record three essential indicators, gaining an understanding of the air condition. Suitable for Various Users This detector caters to the needs of home users, office workers, and educational institutions. It assists families in monitoring and improve indoor air quality, facilitates office personnel in creating a comfortable working environment, and ensures students in schools and educational institutions have a healthy learning atmosphere. Versatile Usage Scenarios Whether it's used in homes, offices, or educational institutions, this detector effectively provides carbon dioxide concentration, temperature, and humidity data, enabling users to create a pleasant and healthy environment. Data Recording and Export Equipped with a clear display screen, this detector shows values of carbon dioxide concentration, temperature, and humidity, allowing users to intuitively understand the air quality. Additionally, it supports data recording and export via USB, facilitating further analysis and evaluation on computers. Specifications: Material: ABS, Electronic Component Size: Approx. 70x30x76mm/2.76x1.18x2.99in Package Includes: 1x Carbon Dioxide Detector( Battery Included) note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.