Our proposal ARC-SN, is a device oriented to reduce Covid-19 infections in an establishment, although there is already a vaccine, we observe that this virus is still latent, and continues spreading in crowded places, therefore, We propose a sanitizing arch that takes the temperature of the person and disinfects the whole body by spraying an antiseptic for 5 seconds, also performs a real-time record of people entering and leaving the place in question, and then, display these data on a web page through graphs indicating the capacity, number of people-hour and people-day. This data will help to predict when there will be a large number of people, in order to avoid crowds, and simultaneously make a better distribution of resources and time according to this information. For this, we use the Classroom Project methodology endorsed by the IPN, since it allows us to integrate the learning acquired from all the subjects in a final project that we carry out throughout 2 semesters.COVID-19