$40.99
First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery Operated , WhiteAmazon$59.99and up
First Alert Hard-Wired Electrochemical Smoke and Carbon Monoxide DetectorAce Hardware & 1 more$37.99
First Alert Battery-Powered Ionization Smoke and Carbon Monoxide DetectorAce Hardware$29.95and up
First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd GenerationAmazon & 3 more$23.47and up
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 PackAmazon & 1 more$39.98
First Alert BRK Battery-operated Combination Smoke and Carbon Monoxide Detector in White | 1046863Lowe's$62.98
First Alert Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alert in White | 1039836-SC7010BPVCN-6Lowe'sSAVE $8.00
$33.99$41.99
First Alert SA303CN3 Smoke and CO400 Carbon Monoxide Detector, Alarm Combo Pack, Battery PoweredAmazon$299.99and up
First Alert Hard-Wired w/Battery Back-up Photoelectric Smoke and Carbon Monoxide DetectorAce Hardware & 1 more$48.60and up
FIRST ALERT Battery Powered BRK SC7010BV Hardwired Talking Photoelectric Smoke and Carbon Monoxide (CO) Detector , WhiteAmazon & 1 moreSAVE $6.14
$33.85$39.99
First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, WhiteAmazon$79.99and up
First Alert Z-Wave Plus Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector w/Wi-FiAce Hardware & 2 more$41.99
First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery BackupAmazon$29.97
First Alert 10-Year Battery 2-Pack Battery-operated Combination Smoke and Carbon Monoxide Detector in White | 1046745Lowe's$86.57
FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 Pack & Alert BRK 9120B-3 Hardwired Smoke Alarm with Backup Battery, 3 Pack, White, 3 CountAmazonSAVE $2.95
$50.95$53.90
First Alert 2-in-1 Z-Wave Wireless Smoke Detector & Carbon Monoxide Alarm, Battery OperatedAmazon$51.79
Photoelectric Smoke and Carbon Monoxide DetectorWayfair