First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm for $35.17 Shipped

First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm for $35.17 shipped. Here is a screenshot for reference.  It can connect wirelessly to a z-wave hub (not included) and features single button test/silence and side-access battery drawer.