Uploaded March 2025 | Updated September 2026, 1 week ago

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Learn how to replace or install a hardwired smoke and C02 carbon monoxide detector with ease! In this step-by-step tutorial, we’ll guide you through the entire process—covering the tools you’ll need, important safety tips, and the installation itself.

Want to keep your home and loved ones safe?

Whether you're upgrading an old unit or adding extra protection to your home, this video has got you covered.

Don't forget to test your detector afterward to ensure it's functioning properly! 💡 Stay safe and secure—watch now and subscribe for more DIY safety tips!"

0:00 Intro
0:05 Beeping Smoke Detector
0:35 How To Remove Old Smoke / C02 Detector
0:54 How To Turn off Power To a Hardwired Detector
1:45 First Alert Smoke CO2 Detector
2:33 Change The Wiring
4:16 Install Replacement Hardwired Smoke Detector / CO2
5:00 Outro