Here's a silly question but here goes - have you tried putting the battery back in and moving it outside to see if it's the smoke detector that's faulty or if something inside is making it alarm? Strange for a brand new detector to suddenly go bad; strange - but not unheard of.
I did. But, now I put it back inside and it is now sporadic. I took it in the house. It'll just start screaming. It's right next to my home alarm. Oh well, time for a new detector. Thanks. I was just wondering if anyone had this problem. I've never seen a smoke detector act this way.
2016 Grey Wolf 26DBH
Ram 2500 5.7 Hemi 4WD