Is the siren loud? Jon Dennis Cruz April 01, 2021 10:51 Updated Definitely! It's not called a siren for nothing! It releases an 85dB alarm sound. Related articles Does the siren talk? Can I talk to the siren? Can I disable the siren "warning sound"? Can I have more than one Siren+Keypad? If my Siren is unplugged, will my alarm system shut down? Comments 0 comments Please sign in to leave a comment.