If you’re a homeowner, you know just how essential smoke and carbon monoxide (CO) detectors are. They’re like silent sentinels, standing guard and ready to alert you to any lurking dangers.

But just like all electronic devices, they don't last forever. It's common for homeowners to set up their detectors and then forget about them. If it’s been a while since you’ve interacted with them, replacing your detectors might give you pause with all the different varieties available. But don’t worry. We’ll show you everything you need to know, from what type you need and when to replace, to how to recycle them.

Learn more.