FAQ's and Troubleshooting


How long will the batteries last on First Alert® OneLink® alarms?

As required by the ANSI/UL standards, a battery operated alarm must have the batteries last for at least one year. First Alert® OneLink® battery operated alarms meet these requirements.

See our lineup of OneLink Wireless Battery and OneLink Wireless Hardwired Alarms.

»Download OneLink Wireless Alarms FAQ's in pdf format.