Re: UL Compatibility

[RickP@xxxxxxxxx]

A word on UL Compatibility from an 'old timer' - Legally speaking, you
can not hang a 2-wire smoke detector off a panel unless it is UL
Listed for that panel.  If you are wiring somebody else's house, I
would definitely look into the UL Compatibility listings before
connecting any 3rd party 2-wire smoke detector.  4-wire smoke
detectors or "contact devices" don't need to be UL Compatible.

If you are wiring your own house, this may or may not be an issue.
However, should there be a fire and your detectors do not respond,
you'll have 'no leg to stand on' in court.