How to Replace Hardwired Smoke Detectors?

Answer Hardwired smoke detectors use a backup battery in case of a power outage. Replacing a hardwired smoke detector requires removing the battery. When you disconnect the power to the circuit breaker, t... Read More »

Top Q&A For: How to Replace Hardwired Smoke Detectors

Do hardwired smoke detectors have batteries?

You can purchase hardwired smoke detectors with or without battery backup. Battery backup is a safer option, because it provides protection even in the event of a power outage. The U.S. Fire Admini... Read More »

Do You Need a Hardwired Smoke Alarm in Your House?

It is important to install your smoke alarms in the manner in which they provide the most protection for the inhabitants of your home. In some cases, it is a matter of legal compliance to install t... Read More »

Why are my smoke detectors going off?

If there are 9v batteries in them, try changing them. Insects can also cause problems with smoke detectors.

When were smoke detectors invented?

The first battery-operated residential smoke detector was invented in 1967 by Duane D. Pearsall of BRK Electronics. The company went on to develop and market the First Alert brand of smoke detector... Read More »