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 »

Who invented smoke detectors?

Francis Robbins Upton and Fernando J. Dibble invented the first automatic electric fire alarm in 1890. In 1967, Duane D. Pearsall invented the first affordable smoke detectors that could be used i... Read More »

Do smoke detectors expire?

According to the U.S. Fire Administration, smoke detectors should be replaced every eight to 10 years. If your alarm is hard wired, a certified electrician needs to replace it. If your alarm operat... Read More »