Introducing SENTRY. The first Distance Projector Badge. We help individuals and companies to lower infection risks by visualizing required safety distances. SENTRY is a portable mini-projector that works autonomously in any indoor environment. There is no need for any additional infrastructure. With SENTRY, users point out the safe distance in an unobtrusive and friendly manner with no confrontational warning signals. SENTRY serves as a self-control and helps the wearer to comply with the established minimum distance rules. With SENTRY, visitors to events can easily comply with social distancing rules as required by governments, event hosts and health organizations.