Right now, Costco is offering a 3-pack of First Alert smoke & carbon monoxide detector alarm for $69.99. Compared to Amazon’s price of $97.44, you save $27.45.
These wireless, battery-operated smoke alarms and carbon monoxide detectors all connect with each other, so when one sounds in part of the house, the rest sound as well to ensure you hear it no matter where you are in the house. They also tell you which location the hazard is coming from in up to 11 locations. they have test/silence buttons and include a 7-year limited warranty.
This deal is available through February 21 while supplies last. Shipping is included in the price.