$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$79.99and up
First Alert Z-Wave Plus Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector w/Wi-FiAce Hardware & 3 more$23.47and up
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 PackAmazon & 1 more$15.99
First Alert 9120BFF Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-PackAmazon$25.99and up
First Alert Battery-Powered Ionization Smoke DetectorAce Hardware & 1 more$25.14
First Alert BRK Lithium Battery Smoke Detector FG250LBAmazon$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$41.99and up
First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke DetectorAce Hardware & 1 more$29.99and up
FIRST ALERT BRK 9120LBL Hardwired Smoke Detector with Adapter Plugs for Easy Replacement , WhiteAmazon & 2 more$36.99and up
First Alert Voice Alert Hard-Wired Photoelectric Smoke DetectorAce Hardware & 1 more$42.98
First Alert BRK Hardwired Heat Detection Smoke Detector in White | HD6135FBLowe's$16.99
First Alert BRK Hardwired Photoelectric Sensor Smoke Detector in White | 7010B-6Lowe's$41.97
First Alert PR700 Slim Photoelectric Smoke Alarm | Battery Operated Smoke Detector (Pack of 3)Amazon$17.57and up
First Alert Hardwired Photoelectric Sensor Smoke Detector with Voice Alert in White | 1039830-SA521CN-3STLowe's & 1 more$21.48
First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup , WhiteAmazon$28.99
First Alert Battery-Powered Ionization/Photoelectric Dual Sensor Smoke DetectorAce Hardware$12.99
First Alert FG200B Family Gard Basics Smoke Alarm 1-Pack | Battery Operated Smoke Detector , WhiteAmazon$106.43and up
Smoke DetectorWayfair & 3 more$13.98and up
First Alert 2-Pack Battery-operated Ionization Sensor Smoke Detector in White | FG200B2Lowe's & 1 moreSAVE $3.99
$16.00$19.99
First Alert FG250 BRK Brands, Inc FG250RV Detector Smoke 9VAmazon$85.99
FIRST ALERT BRK 3120B-3 Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup, 3-PackAmazon$94.48and up
First Alert BRK 7020BSL Hardwired Hearing Impaired Smoke Detector with LED Strobe Light , whiteAmazon & 1 more$39.99and up
First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd GenerationAmazon & 3 more$189.99
First Alert BRK 7010BFF-12 Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup, 12-Pack , WhiteAmazon$42.99
First Alert 10 Year With Path Light Battery-Powered Photoelectric Smoke DetectorAce Hardware$34.98and up
First Alert 10-Year Battery-operated Photoelectric Sensor Smoke Detector with Voice Alert in White | 1046755Lowe's & 1 more$120.20
First Alert BRK SC9120B Smoke Carbon Monoxide Detector w/ Batt Backup (3 Pack)NeweggSAVE $2.90
$51.00$53.90
First Alert 2-in-1 Z-Wave Wireless Smoke Detector & Carbon Monoxide Alarm, Battery OperatedAmazon$37.99
First Alert Battery-Powered Ionization Smoke and Carbon Monoxide DetectorAce Hardware$53.05and up
Electrochemical Smoke and Carbon Monoxide DetectorWayfair & 1 more$189.99
First Alert Hard-Wired w/Battery Back-up Ionization Smoke/Fire DetectorAce Hardware$49.99
First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery Operated , WhiteAmazon$49.98and up
First Alert BRK Hardwired Combination Smoke and Carbon Monoxide Detector in White | SC9120B-6Lowe's & 1 more$39.98
First Alert Battery-operated Combination Smoke and Carbon Monoxide Detector in White | 1039784-PRC700-6Lowe's$48.60and up
FIRST ALERT Battery Powered BRK SC7010BV Hardwired Talking Photoelectric Smoke and Carbon Monoxide (CO) Detector , WhiteAmazon & 1 more$49.98and up
First Alert 10-Year Battery-operated Combination Smoke and Carbon Monoxide Detector with Voice Alert in White | 1046803Lowe's & 1 moreSAVE $6.14
$33.85$39.99
First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, WhiteAmazon$299.99and up
First Alert Hard-Wired w/Battery Back-up Photoelectric Smoke and Carbon Monoxide DetectorAce Hardware & 1 more