9 Electronic device and monitoring system comprised of meters and sensors for monitoring individual body temperature and to manage alarms and access control in areas with flows of people in transit, namely, hospitals, supermarkets, railway stations, schools, airports, companies, offices, and shopping centers, not for medical purposes; Electronic device and monitoring system comprised of meters and sensors for monitoring temperature and humidity under the clothing incorporating an internal electronic module located under the garment, an external electronic module with temperature and humidity sensors and internal storage device connected to the electronic modules wirelessly, a receiving device that monitors current temperature and humidity values of the observed object used to collect and compare temperature and humidity information from the modules fixed under the clothes and the external modules to calculate the condition of the wearer and transfer the data to the user's devices, not for medical purposes; downloadable software application for use in the testing and diagnosis of COVID-19, coronavirus, and other diseases; downloadable computer programs for use in the testing and diagnosis of COVID-19, coronavirus, and other diseases; downloadable software in the nature of a mobile application for use in the testing and diagnosis of COVID-19, coronavirus, and other diseases; downloadable software application for monitoring individual body temperature and to manage alarms and access in areas with flows of people in transit, namely, hospitals, supermarkets, railway stations, schools, airports, companies, offices, and shopping centers