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Best Carbon monoxide alarms Deals in the United States

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Deals are available from 8 stores and 3 brands. An additional discount is available for 4 items. Last updated on September 24, 2025.
HONEYWELL MAZ3-A2C112E-020 Multi-RAE Lite Multi-Gas Detector, IP65, Audible,
HONEYWELL MAZ3-A2C112E-020 Multi-RAE Lite Multi-Gas Detector, IP65, Audible,
HONEYWELL MAZ3-A2C112E-020 Multi-RAE Lite Multi-Gas Detector, IP65, Audible,
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Kidde Detect Series 30CUAR Hardwired Interconnectable Smoke and Carbon Monoxide Alarm with (2) AA Backup Batteries 21031529
Kidde Detect Series 30CUAR Hardwired Interconnectable Smoke and Carbon Monoxide Alarm with (2) AA Backup Batteries 21031529
Kidde Detect Series 30CUAR Hardwired Interconnectable Smoke and Carbon Monoxide Alarm with (2) AA Backup Batteries 21031529
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Kidde Hardwired Interconnectable Carbon Monoxide Alarm with Alkaline Backup Battery 21006406
Kidde Hardwired Interconnectable Carbon Monoxide Alarm with Alkaline Backup Battery 21006406
Kidde Hardwired Interconnectable Carbon Monoxide Alarm with Alkaline Backup Battery 21006406
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AIR PRODUCTS & CONTROLS SL-701 KIT Carbon Monoxide Duct Detector Kit
AIR PRODUCTS & CONTROLS SL-701 KIT Carbon Monoxide Duct Detector Kit
AIR PRODUCTS & CONTROLS SL-701 KIT Carbon Monoxide Duct Detector Kit
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Kidde Detect Series 30CUDR10 Battery-Powered Smoke and Carbon Monoxide Alarm with 10-Year Battery 21031514
Kidde Detect Series 30CUDR10 Battery-Powered Smoke and Carbon Monoxide Alarm with 10-Year Battery 21031514
Kidde Detect Series 30CUDR10 Battery-Powered Smoke and Carbon Monoxide Alarm with 10-Year Battery 21031514
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SYSTEM SENSOR CO1224TR Carbon Monoxide Alarm,12/24 VDC, 4-Wire
SYSTEM SENSOR CO1224TR Carbon Monoxide Alarm,12/24 VDC, 4-Wire
SYSTEM SENSOR CO1224TR Carbon Monoxide Alarm,12/24 VDC, 4-Wire
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Safe-T-Alert 62 Series Carbon Monoxide Alarm - 12V - 62-542-Marine - Flush Mount - White 62-542-MARINE
Safe-T-Alert 62 Series Carbon Monoxide Alarm - 12V - 62-542-Marine - Flush Mount - White 62-542-MARINE
Safe-T-Alert 62 Series Carbon Monoxide Alarm - 12V - 62-542-Marine - Flush Mount - White 62-542-MARINE
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Safe-T-Alert Carbon Monoxide Alarm FX-4 FX-4
Safe-T-Alert Carbon Monoxide Alarm FX-4 FX-4
Safe-T-Alert Carbon Monoxide Alarm FX-4 FX-4
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Safe-T-Alert Combo Carbon Monoxide Propane Alarms Flush Mount - White 35-742-WHT
Safe-T-Alert Combo Carbon Monoxide Propane Alarms Flush Mount - White 35-742-WHT
Safe-T-Alert Combo Carbon Monoxide Propane Alarms Flush Mount - White 35-742-WHT
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eufy Security Smoke and Carbon Monoxide Alarm Listener White
eufy Security Smoke and Carbon Monoxide Alarm Listener White
eufy Security Smoke and Carbon Monoxide Alarm Listener White
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First Alert Carbon Monoxide Alarm - Wired - 120 V AC - Audible - Ceiling Mountable, Wall Mountable - White
First Alert Carbon Monoxide Alarm - Wired - 120 V AC - Audible - Ceiling Mountable, Wall Mountable - White
First Alert Carbon Monoxide Alarm - Wired - 120 V AC - Audible - Ceiling Mountable, Wall Mountable - White
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Natural Gas And Carbon Monoxide Alarm Dual Sensor Home Gas Safety Monitor us Plug
50% Off
Natural Gas And Carbon Monoxide Alarm Dual Sensor Home Gas Safety Monitor us Plug
Natural Gas And Carbon Monoxide Alarm Dual Sensor Home Gas Safety Monitor us Plug
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$155.95
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Kidde Safety 21010073 Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5"W x 2.75"H x 1.5"D KID21010073
Kidde Safety 21010073 Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5"W x 2.75"H x 1.5"D KID21010073
Kidde Safety 21010073 Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5"W x 2.75"H x 1.5"D KID21010073
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Kidde Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5 x 1.5 x 2.75 (KID21010073) Each Kidde Safety Smoke/CO Detectors
16% Off
Kidde Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5 x 1.5 x 2.75 (KID21010073) Each Kidde Safety Smoke/CO Detectors
Kidde Sealed Battery Carbon Monoxide Alarm, Lithium Battery, 4.5 x 1.5 x 2.75 (KID21010073) Each Kidde Safety Smoke/CO Detectors
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$88.28
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Kidde Safety 21010071 Kitchen Smoke/Carbon Monoxide Alarm, Lithium Battery, 5.22"Dia x 1.6"Depth KID21010071
Kidde Safety 21010071 Kitchen Smoke/Carbon Monoxide Alarm, Lithium Battery, 5.22"Dia x 1.6"Depth KID21010071
Kidde Safety 21010071 Kitchen Smoke/Carbon Monoxide Alarm, Lithium Battery, 5.22"Dia x 1.6"Depth KID21010071
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