My local Walmart has a Gentex smoke detector in the back by the restrooms that looks like it has a built-in alarm. Do some system smoke detectors have built-in alarms? Or is it just a stand alone detector not connected to the fire alarm system?
My local Walmart has a Gentex smoke detector in the back by the restrooms that looks like it has a built-in alarm. Do some system smoke detectors have built-in alarms? Or is it just a stand alone detector not connected to the fire alarm system?