What is a Siren? MyPlace Technical Support September 25, 2018 18:08 Updated Follow A Siren gives audible and visual notifications when your alarm goes off. Related articles What are the qualifications of MyPlace professional monitored services? How do you pair a MyPlace Siren? How do you reset a MyPlace Siren? Where should you install a Siren? How many devices can you connect to a single Gateway? Comments 0 comments Please sign in to leave a comment.