Costco has a 3-pack of First Alert Smoke and Carbon Monoxide Alarms on sale again for $80 shipped. Item #1147721, model SCO501CN.
This model has the voice location feature and link wirelessly. Got a set last time they were on sale. Some people complain they are difficult to link, but the instructions are straightforward and I had no issues.
https://www.costco.com/First-Aler…47069.ht
Iconic One Theme | Powered by Wordpress