If in doubt, call a pro. Installing hard hardwired smoke alarms or carbon monoxide detectors can be complicated. It's possible to be a DIY project for homeowners, but it does require basic ...
The smoke alarm device will automatically reset after approximately 11 minutes, if after this period, particles of combustion are still present, the alarm will sound again. Easy to Install ...
Always start by checking your state laws on smoke detectors for guidelines on what to do. Please keep in mind that many states require certain smoke detectors to be wired with battery backups.