$27.89and up
First Alert 9120LBL AC/DC Smoke Alarm 9 Volt Lithium Battery Smoke Alarm White Safety Equipment Detectors Smoke DetectorsBuild.com & 1 more$14.20
First Alert 9120BFF Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-PackAmazon$36.99and up
First Alert Voice Alert Hard-Wired Photoelectric Smoke DetectorAce Hardware & 1 more$23.47and up
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 PackAmazon & 1 more$41.99and up
First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke DetectorAce Hardware & 1 more$79.99and up
First Alert Z-Wave Plus Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector w/Wi-FiAce Hardware & 3 moreSAVE $1.95
$17.54$19.49
First Alert BRK Lithium Battery Smoke Detector FG250LBAmazon$29.99and up
FIRST ALERT BRK 9120LBL Hardwired Smoke Detector with Adapter Plugs for Easy Replacement , WhiteAmazon & 2 more$19.98and up
First Alert Hardwired Ionization Sensor Smoke Detector in White | 1039808-SA9120BPCN-6Lowe's & 1 more$41.97
First Alert PR700 Slim Photoelectric Smoke Alarm | Battery Operated Smoke Detector (Pack of 3)AmazonSAVE $2.67
$19.31$21.98
First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup , WhiteAmazon$25.99
First Alert Slim Battery-Powered Photoelectric Smoke DetectorAce Hardware$16.98
First Alert Battery-operated Ionization Sensor Smoke Detector in White | 1046846Lowe's$88.99
FIRST ALERT BRK 3120B-3 Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup, 3-PackAmazon$37.55and up
First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd GenerationAmazon & 3 more$16.99and up
First Alert BRK Hardwired Photoelectric Sensor Smoke Detector in White | 7010B-6Lowe's & 1 more$11.51
First Alert FG200B Family Gard Basics Smoke Alarm 1-Pack | Battery Operated Smoke Detector , WhiteAmazon$12.99
First Alert Battery-Powered Ionization Smoke/Fire DetectorAce Hardware$42.98
First Alert BRK Hardwired Heat Detection Smoke Detector in White | HD6135FBLowe's$13.98and up
First Alert 2-Pack Battery-operated Ionization Sensor Smoke Detector in White | FG200B2Lowe's & 1 moreSAVE $9.38
$69.36$78.74
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 CountAmazon$33.99and up
First Alert SA303CN3 Smoke and CO400 Carbon Monoxide Detector, Alarm Combo Pack, Battery PoweredAmazon & 1 more$35.54and up
FIRST ALERT Battery Powered BRK SC7010BV Hardwired Talking Photoelectric Smoke and Carbon Monoxide (CO) Detector , WhiteAmazon & 1 more$54.98and up
First Alert Battery-operated Combination Smoke and Carbon Monoxide Detector with Voice Alert in White | 1048446Lowe's & 1 more$120.20
First Alert BRK SC9120B Smoke Carbon Monoxide Detector w/ Batt Backup (3 Pack)Newegg$28.99
First Alert Battery-Powered Ionization/Photoelectric Dual Sensor Smoke DetectorAce Hardware$111.05and up
Smoke DetectorWayfair & 3 more$53.81
First Alert 2-in-1 Z-Wave Wireless Smoke Detector & Carbon Monoxide Alarm, Battery OperatedAmazon$49.98and up
First Alert BRK Hardwired Combination Smoke and Carbon Monoxide Detector in White | SC9120B-6Lowe's & 1 moreSAVE $3.88
$16.11$19.99
First Alert FG250 BRK Brands, Inc FG250RV Detector Smoke 9VAmazon$299.99and up
First Alert Hard-Wired w/Battery Back-up Photoelectric Smoke and Carbon Monoxide DetectorAce Hardware & 1 more$42.99
First Alert 10 Year With Path Light Battery-Powered Photoelectric Smoke DetectorAce HardwareSAVE $5.15
$35.84$40.99
First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery Operated , WhiteAmazon$55.61and up
Electrochemical Smoke and Carbon Monoxide DetectorWayfair & 1 more$37.99
First Alert Battery-Powered Ionization Smoke and Carbon Monoxide DetectorAce Hardware$41.98
First Alert Battery-operated Combination Smoke and Carbon Monoxide Detector in White | 1039339Lowe's