Most hated bit of home electronics: smoke and gas detectors. One went off today for no reason. Grabbed a ladder, disconnected it, blew on it, reinstalled it and now it is silent. Pretty much expecting it to go off again in the middle of the night. It’s only a few years old. 😖

@skoobz For once this happened in the day time. But sure enough a couple hours later it went off again. Fortunately I left the ladder in place. I ordered a replacement. It was due for replacement next year so not a big deal.