Features: Ensures a healthy environment with our high Precisions Digital CO2 Temperature Humidity Meter, essential tool for air quality monitoring. Featuring LCD display, this Small Air Quality Tester delivers accurate readings of CO2 , temperature, and humidity, user friendly device. Suitable for health individuals, including Family, office workers, and those with respiratory sensitivities, who demand a clean and safe atmosphere. multifunction and portable, this CO2 Digital monitors is perfect for use in various indoor setting such as homes, offices, schools, and vehicles to maintain Best air conditions. With its build in alarm function, this advanced meter alerts you when CO2 concentrations exceed safe , promoting active management of your indoor air quality. Specifications: Material: ABS Size: about 17x50.6x85mm/0.67x1.99x3.35inch Package Includes: 1xCO2 Detectors 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.