multifunction and portable, this CO2 Digital monitors is Excellent for use in various indoor setting such as homes, offices, schools, and vehicles to maintain Best air conditions Featuring LCD display, this Small Air Qualities Tester delivers accurate readings of CO2 , temperature, and humidity, user friendly device Suitable for health individuals, including Family, Offices workers, and those with respiratory sensitivities, who demand a Wash and safe With its build in alarm function, this advanced meter alerts you when CO2 concentrations beyond safe , promoting active management of your indoor air Qualities Ensures a Health environment with our high Precisions Digital CO2 Temperature Humidity Meter, essential tool for air Qualities Monitorings, Manufacturer: Beimus