Tagged: System Sensor 1451 Replacement This topic has 1 reply, 2 voices, and was last updated 10 months ago by Khris James. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts January 23, 2024 at 2:36 pm #5356 Olivia ThompsonParticipant Hi everyone, I have a System Sensor 1451 and I’m looking for a suitable replacement. Any recommendations? January 23, 2024 at 2:36 pm #5357 Khris JamesModerator Hello! Based on your System Sensor 1451, I recommend the System Sensor 2151 as a suitable replacement. It offers similar functionality and compatibility, ensuring a smooth transition for your fire alarm system. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In