and some even come incorporated intosmoke detectors. These are stand-alone devices, but you can also purchase a system-connected, monitored device which is wired to a security or fire panel and supervised by an off-site service.
Hard Wired and Batteries We said “You have hard-wired all of your smoke detectors, right? Why is that? So that if, um, you know, the biggest problem with smoke detectors is that the battery dies, so you want to have AC electricity to it, in case that battery is dead.” We meant...