Carevas Infrared Air Quality Monitor CO2 Carbon Dioxide Humidity Meter Built-in 1200mAh Rechargeable Battery

It can accurately and quickly detect the indoor CO2 content to your health. At the same time, it provides real-time monitoring of indoor and humidity. Adopt infrared detection technology, high measurement accuracy, fast response. It has 4 colors indicator to display real-time carbon dioxide concentration value. Different color indicator will flash according to the carbon dioxide content, making the air quality more intuitive. Small size, easy to carry and use. Built-in 1200mAh large capacity battery, long endurance time.