CO2 detector not working Outdoor quality = 550ppm, indoor quality in the small room with 3 people = 560 ppm
Good concept but product has the following issues: CO2 sensor is not NDIR so the measure is an average. The App still has some texts not translated. But, what is the worst thing about this product is the permissions requested by the App. It virtually needs access to all your data and your phone in order to work, so installing this App means that you give permission to capture your phone details, location, photos, videos, usage statistics, etc. I installed this in a test device but I don think i will keep it.