Step 6: Power up and test your smoke detector. Battery-powered units are ready to go. If you had to shut the power off for a hard-wired system, now’s the time to power back up. Head back down to ...

Safety first: Before starting any electrical work, turn off the power at the breaker panel. Use an electrical tester to verify the power is off. Twist your old smoke detector to loosen it from its ...

While we’re certainly not denying that smoke detectors are useful, there’s a certain kind of tragedy to the fact that most of them will never realize their true purpose of detecting smoke ...