The TVS-500IS Thermal Imager is ideal for screening safely and efficiently those who may potentially be ill. The body temperature of those infected is expected to be approximately 100.4°~102.2°F while the normal temperature of an adult should be approximately 98.6°F. The TVS-500IS Thermal Imaging Camera visualize this temperature difference instantly from a safe distance for you to segregate those who may be infected with multiple strains of the flu, including the Swine Flu!