![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)
Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com
![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)