The National fire protection agency (NFPA) recommends to replace your smoke alarms after 10 years. They have a small amount of radiation which causes them to lose 3-5% of their useful life.

A smoke alarm is a device that sounds an audio signal to alert homeowner of a potential fire, a smoke detector detects smoke and sends a single to an alarm/monerting company.

10 year lithium batteries are only guaranteed from some manufacturing company's for 1 year after the package has been opened. They are a longer life battery, but only under optimal conditions will they last 10 years.

Smoke detectors can mistake dust for smoke. They chirp to tell homeowner that the battery is getting low and needs to be replaced. Bugs can also be the culprit because they are attracted to the heat in the detector.

The detector is telling you it’s at the end of its life. The NFPA(National fire protection agency) recommends to replace detectors after 10 years from the manufacturing date. Their is a born on date on the back of most detectors.

They are hard wired with 110v power. The battery in the detector is a backup for power outages from Hurricanes or storms.

Photoelectric-sensing alarms may detect visible particles (associated with smoldering fires) Ionization-sensing alarms may detect invisible fire particles (associated with flaming fires) (4618)

Install smoke detectors inside each bedroom, on every level of the house, and outside each sleeping area. On levels without bedrooms, install alarms in the living room or near the stairway to the upper level.

Smoke alarms can enter a low battery chirp when air temperatures drop. Most homes are the coolest between 2 a.m. and 6 a.m. that’s why the alarm may sound a low-battery chirp in the middle of the night, and then quit when the home warms up a few degrees.

A fire doubles in size every 30 seconds so detectors are connected to each other to alarm a home owner of a potential fire no matter what part of the house the fire is located. The homeowner will have more time to exit the residence. A fire doubles in size every 30 seconds so detectors are HARDWIRED TOGETHER to alarm a home owner of a potential fire no matter what part of the house the fire is located. The homeowner will have more time to exit the residence.