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Uses item details. Price when purchased online

First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup $19.81 Was $24.95

First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup
current price Now $19.81, Was $24.95

First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup

4.7 out of 5 Stars. 68 reviews

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector $34.90

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector
current price $34.90

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector

4.5 out of 5 Stars. 23 reviews

First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack From $49.51

First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
Available in additional 4 options
Options
From$4951

First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack

4.3 out of 5 Stars. 52 reviews

First Alert Interconnect Hardwired Smoke Alarm with 10-Year Battery Backup, 1 pk $41.99

First Alert Interconnect Hardwired Smoke Alarm with 10-Year Battery Backup, 1 pk
current price $41.99

First Alert Interconnect Hardwired Smoke Alarm with 10-Year Battery Backup, 1 pk

5 out of 5 Stars. 1 reviews

First Alert 1046834, Electric Precision Detection Smoke Alarms $24.84

First Alert 1046834, Electric Precision Detection Smoke Alarms
current price $24.84

First Alert 1046834, Electric Precision Detection Smoke Alarms

4.5 out of 5 Stars. 107 reviews

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $49.51

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
current price $49.51

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization

4.2 out of 5 Stars. 124 reviews

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795 $36.99

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795
current price $36.99

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795

4.8 out of 5 Stars. 26 reviews

First Alert SMCO100 Battery-Operated 2-in-1 Smoke and CO Alarm $35.99 Was $41.10

First Alert SMCO100 Battery-Operated 2-in-1 Smoke and CO Alarm
current price Now $35.99, Was $41.10

First Alert SMCO100 Battery-Operated 2-in-1 Smoke and CO Alarm

3 out of 5 Stars. 2 reviews

First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector $74.97

First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector
current price $74.97

First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

4.7 out of 5 Stars. 19 reviews

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 12-Pack $309.95

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 12-Pack
current price $309.95

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 12-Pack

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 3-Pack $85.49

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 3-Pack
current price $85.49

First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 3-Pack

5 out of 5 Stars. 2 reviews

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm $29.99

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm
current price $29.99

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm

4.3 out of 5 Stars. 82 reviews

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795PT $36.99 $78.70/ea

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795PT
current price $36.99
$78.70/ea

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795PT

4.8 out of 5 Stars. 9 reviews

First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup $129.00

First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup
current price $129.00

First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup

4.4 out of 5 Stars. 8 reviews

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

4.4 out of 5 Stars. 489 reviews

New First Alert 1039871/PRC710V 10 Year 2 In 1 Photoelectric Smoke Detector With Carbon Monoxide Alarm $53.95

New First Alert 1039871/PRC710V 10 Year 2 In 1 Photoelectric Smoke Detector With Carbon Monoxide Alarm
current price $53.95

New First Alert 1039871/PRC710V 10 Year 2 In 1 Photoelectric Smoke Detector With Carbon Monoxide Alarm

3.7 out of 5 Stars. 3 reviews

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 1-Pack $33.99

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 1-Pack
current price $33.99

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 1-Pack

First Alert SC5 Battery Smart 2-in-1 Smoke and CO Alarm with Voice Alerts $129.99

First Alert SC5 Battery Smart 2-in-1 Smoke and CO Alarm with Voice Alerts
current price $129.99

First Alert SC5 Battery Smart 2-in-1 Smoke and CO Alarm with Voice Alerts

4.8 out of 5 Stars. 6 reviews

First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display, 1039746PT $35.88 $52.00/ea

First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display, 1039746PT
current price $35.88
$52.00/ea

First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display, 1039746PT

4.4 out of 5 Stars. 8 reviews

First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup $30.49

First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup
current price $30.49

First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup

4.3 out of 5 Stars. 35 reviews

First Alert BRK, SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 3-Pack $92.99

First Alert BRK, SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 3-Pack
current price $92.99

First Alert BRK, SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 3-Pack

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display $50.45 Was $62.99

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
current price Now $50.45, Was $62.99

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display

4.4 out of 5 Stars. 88 reviews

First Alert GC01CN Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display, 1039760PT $50.45 $59.35/ea

First Alert GC01CN Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display, 1039760PT
current price $50.45
$59.35/ea

First Alert GC01CN Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display, 1039760PT

5 out of 5 Stars. 13 reviews

First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup $68.99 Was $118.79

First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup
current price Now $68.99, Was $118.79

First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

4.5 out of 5 Stars. 34 reviews

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 12-Pack $309.99

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 12-Pack
current price $309.99

First Alert BRK SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 12-Pack

First Alert CO250B, White, 9-Volt Battery, Electrochemical Carbon Monoxide Alarm

First Alert CO250B, White, 9-Volt Battery, Electrochemical Carbon Monoxide Alarm

First Alert CO250B, White, 9-Volt Battery, Electrochemical Carbon Monoxide Alarm

4.7 out of 5 Stars. 19 reviews

First Alert SMI100-AC Hardwire Interconnect Smoke Detector with Battery Backup, 6-Pack $105.97

First Alert SMI100-AC Hardwire Interconnect Smoke Detector with Battery Backup, 6-Pack
current price $105.97

First Alert SMI100-AC Hardwire Interconnect Smoke Detector with Battery Backup, 6-Pack

4 out of 5 Stars. 4 reviews

First Alert PR710 White Smoke Detector With 10 Year Life

First Alert PR710 White Smoke Detector With 10 Year Life

First Alert PR710 White Smoke Detector With 10 Year Life

3.9 out of 5 Stars. 10 reviews

First Alert CO5120BN White Digital Display Hardwired Battery, Electrochemical Carbon Monoxide Alarm $40.95

First Alert CO5120BN White Digital Display Hardwired Battery, Electrochemical Carbon Monoxide Alarm
current price $40.95

First Alert CO5120BN White Digital Display Hardwired Battery, Electrochemical Carbon Monoxide Alarm

4.8 out of 5 Stars. 5 reviews

First Alert 1046727, Battery Powered Photoelectric Sensor Smoke Detector $29.95

First Alert 1046727, Battery Powered Photoelectric Sensor Smoke Detector
current price $29.95

First Alert 1046727, Battery Powered Photoelectric Sensor Smoke Detector

1 out of 5 Stars. 1 reviews

First Alert SMCO210 10-Year Battery 2-in-1 Smoke & CO Alarm, Slim Profile Design, 6-Pack (BRK 1046801) $279.99

First Alert SMCO210 10-Year Battery 2-in-1 Smoke & CO Alarm, Slim Profile Design, 6-Pack (BRK 1046801)
current price $279.99

First Alert SMCO210 10-Year Battery 2-in-1 Smoke & CO Alarm, Slim Profile Design, 6-Pack (BRK 1046801)

First Alert PRC710, Battery-Powered Ionization Smoke Alarms $21.99

First Alert PRC710, Battery-Powered Ionization Smoke Alarms
current price $21.99

First Alert PRC710, Battery-Powered Ionization Smoke Alarms

4.6 out of 5 Stars. 27 reviews

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. 10 Pack. $400.00 Was $504.50

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. 10 Pack.
current price Now $400.00, Was $504.50

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. 10 Pack.

First Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk $64.99

First Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk
current price $64.99

First Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk

First Alert BRK SC9120B (2 pack) Smoke & Carbon Monoxide Detector w/ Batt Backup

First Alert BRK SC9120B (2 pack) Smoke & Carbon Monoxide Detector w/ Batt Backup

First Alert BRK SC9120B (2 pack) Smoke & Carbon Monoxide Detector w/ Batt Backup

4.9 out of 5 Stars. 56 reviews

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

4.4 out of 5 Stars. 47 reviews

Other options to consider

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack
current price $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack

5 out of 5 Stars. 9 reviews

First Alert PRO2-5 $37.99

First Alert PRO2-5
current price $37.99

First Alert PRO2-5

4 out of 5 Stars. 1 reviews

Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required From $28.99

Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required
With Hub, variant on Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required
Without Hub, variant on Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required
Options
From$2899

Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required

4.3 out of 5 Stars. 7 reviews

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