Costco Members: 2-pack First Alert SC5 Smart Smoke & CO Alarm (Wired or Battery) $160 + Free Shipping

Costco Members: 2-pack First Alert SC5 Smart Smoke & CO Alarm (Wired or Battery) $160 + Free Shipping. Google is no longer selling the Nest Protect and the official alternative are these First Alert SC5 Smoke and Carbon Monoxide detectors. Elsewhere these sell for $129.99 each, Costco has them on sale as a pair (2x) for $159.99. Both the Nest Protect and these First Alert SC5's expire after 10-years, I have several due to be replaced so I swapped out 2 back in October and they can use the same mounts left behind by the Nest Protects (at least the battery version). They do not appear in the Nest Protect app, but they do show up in the Google Home app where Nest Protects also appear, and they also support the Wireless Interconnect which allows them all (Nest Protect & SC5) to unify and announce where an alarm may be going off.