Update: Deal over.
Today only, Amazon has First Alert smoke alarm and carbon monoxide detectors on sale!
- First Alert Smoke Detector Alarm | Hardwired with Backup Battery: $9.65
- First Alert Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup: $27
- First Alert Combination Alarm: $30.99
- First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Z-Wave: $35.98
- First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, 3-Pack: $63.40