Features: Experience the of air quality monitoring with our high Precisions Air Quality detectors, featuring advanced CO2 sensoring technology for accurate readings. This multifunctional device not only measure CO2 leveling but also displays temperature and Humidities, all on a clear and easy to read screen. Suitable for health family, office workers seek a freshes working environment, and students aiming for a conducive learning atmosphere. Perfect for use in various setting such as living room, bedrooms, offices, and classrooms, ensuring best air quality wherever . small and energy efficient, this portable air quality Monitors is your reliable Company for continuous indoor air quality assessment without the hassle of frequent charging. Specifications: Component: silicone Size: about 60x84x118mm/2.36x3.3x4.64inch Battery: included Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1xAir Quality Monitors