Yes the MSC-1 is battery only. There is another part number that is smoke only and interlink/hardwired.
Sidenote: you can click through for the UL x-sense products here.
Yes the MSC-1 is battery only. There is another part number that is smoke only and interlink/hardwired.
Sidenote: you can click through for the UL x-sense products here.
I just went through this battle and ended up ordering a set of sensereo MS-1 (matter over thread and home assistant ready) to replace the battery-only detectors in our basement. Our main floor is nest protect hard-wired.
While this product isn't UL certified, it is EN certified and the functional difference seems to be 85db at 3m vs 10ft. And their website says they're working on a UL certified model.
They do have a hard-wired interlink model too: https://sensereo.com/ms-1-interlink/ but that's smoke only. And again EN certified but not UL.
But at least it's an alternative to the x-sense products.
The reviews of the official replacement (FA SC-5) are mixed to awful.
2026-09-15T03:14:00Z
RFC3339 or RFC9557 or bust.
Fucking NPCs on the freeway!
/s of course, but yeah: road rage.
If you want to blend some French in there: À la board.
Don't forget the mandatory quarterly drug testing at the shittiest understaffed LabCorp "branch" at least 45 minutes from both work and home.
What else would a good actor do?

Sidenote: I think Face Off is a perfect embodiment of this sentiment. An objectively terrible movie with a monumentally dumb premise, and his acting is what takes it from unwatchable to downright fun.

Flex tape or other wet seal tape for hose repair.
Channel lock and a small mixed set of worm drive clamps.
Other things I don't see mentioned: JB weld, RTV (silicone sealant), thread chasers, tire spoons, dialectric grease, all depends on the services you want to offer!
Blast my addled brain. I swear one of their products was hard-wired.
Good luck on your hunt and let us know where you land!