We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Your home’s ...

Installing hard hardwired smoke alarms or carbon monoxide detectors ... Install the backup battery in the battery compartment. If you're remotely uncertain, seek a professional electrician.

Battery-operated smoke detectors are some of the simplest home security devices to install. They typically come ready to go right out of the box, so all you need to do is mount it. You can follow ...