[Lashman]

Can I add a plug to a wire-in smoke alarm and plug it into an outlet?
I have an outlet at the top of my wall, the last home owner here had one plugged in there but it's ancient (made out of metal!).

Thanks,
Lash

[tkrussell]

Do you have two wire or three wire interconnectable smoke detectors?

[Fr_Chuck]

What is the voltage, all of my wire units the electric is converted prior to going to the alarm

[ma0641]

If you have an older house with a 2 wire. I would suppose, yes you can. You can Also use it with a 3 wire but it will not be tied into the rest of the detectors. The simplest thing would be to use a battery unit.