![electrical - Lights on same circuit don't work after replacing smoke detector - Home Improvement Stack Exchange electrical - Lights on same circuit don't work after replacing smoke detector - Home Improvement Stack Exchange](https://i.stack.imgur.com/VzCbE.jpg)
electrical - Lights on same circuit don't work after replacing smoke detector - Home Improvement Stack Exchange
![First Alert smoke detector removed and there's still beeping at the hole in the ceiling! - Fire Alarm General Discussion - The Fire Panel Forums First Alert smoke detector removed and there's still beeping at the hole in the ceiling! - Fire Alarm General Discussion - The Fire Panel Forums](https://cdn.thefirepanel.com/original/2X/f/fccf057800e2ed3517dc515088fb007d5a817fa1.jpeg)
First Alert smoke detector removed and there's still beeping at the hole in the ceiling! - Fire Alarm General Discussion - The Fire Panel Forums
![Multiple photos. New place. How can I know if my smoke detectors are interconnected (one sounds alarm, the other ones do too)? I tried the test button, but these detectors just give Multiple photos. New place. How can I know if my smoke detectors are interconnected (one sounds alarm, the other ones do too)? I tried the test button, but these detectors just give](https://i.redd.it/multiple-photos-new-place-how-can-i-know-if-my-smoke-v0-jvqof3tjvvrb1.jpg?width=4032&format=pjpg&auto=webp&s=b136b4eedd76aa1ed35021be614efdd50ffb75c9)
Multiple photos. New place. How can I know if my smoke detectors are interconnected (one sounds alarm, the other ones do too)? I tried the test button, but these detectors just give
![Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com](https://m.media-amazon.com/images/I/71BI96hlFJL.jpg)