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Safety Equipment and GearAlarm SystemsAll Home SecurityAll Tool SetsBathroom PlumbingBLACK+DECKERCar Emergency SuppliesCarbon Monoxide AlarmsDimmers, Switches, and Wall PlatesDoor HardwareDoor Security HardwareDoorbellsElectrical ToolsElectronic Communication ComponentsEmergency SuppliesFire SafetyFirst AlertFlashlightsFurniture HardwareGarage Door Openers and HardwareGate HardwareGatesGuttering & DrainageHand ToolsHome SafetyHome Safety by BrandHVAC Ducting and VentilationKiddeLight BulbsMailboxes and Mailbox AccessoriesMechanics ToolsOutletsPersonal PreparednessPersonal SafetyPower ToolsSafety DetectorsShop Plumbing by FixtureStorm & Flood PrepSurveillanceThermostatsTool Equipment & StorageUniversal Security InstrumentsWater Heaters, Pumps & TanksWildfire Prep
Detectors(1000+)
Uses item details. Price when purchased online
X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack From $39.99
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From$3999
X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack
3414.6 out of 5 Stars. 341 reviews
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X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC06 From $42.99
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From$4299
X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC06
6124.6 out of 5 Stars. 612 reviews
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X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC01 From $39.99
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From$3999
X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC01
484.4 out of 5 Stars. 48 reviews
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Deal SITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.3 pack From $35.14
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From$3514
SITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.3 pack
64.3 out of 5 Stars. 6 reviews
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LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $13.99
From$1399
LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
344.7 out of 5 Stars. 34 reviews
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Overall pick Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44
$2344
current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
5554.6 out of 5 Stars. 555 reviews
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100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $19.88
2 options
Available in additional 2 optionsFrom$1988
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
8024.5 out of 5 Stars. 802 reviews
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100+ bought since yesterday Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included From $38.97
3 options
Available in additional 3 optionsFrom$3897
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
7704.5 out of 5 Stars. 770 reviews
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Deal SITERWELL Smoke Detector, 10 Year Battery ,Photoelectric Sensor, Fire Alarm,Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 1 Packs From $21.24
8 options
Available in additional 8 optionsFrom$2124
SITERWELL Smoke Detector, 10 Year Battery ,Photoelectric Sensor, Fire Alarm,Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 1 Packs
1964.4 out of 5 Stars. 196 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch From $34.97
2 options
Available in additional 2 optionsFrom$3497
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
3784.1 out of 5 Stars. 378 reviews
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SITERWELL Smoke Detector, 10 Year Battery,Photoelectric Sensor, Fire Alarm,Low Battery,12 Packs From $21.24
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From$2124
SITERWELL Smoke Detector, 10 Year Battery,Photoelectric Sensor, Fire Alarm,Low Battery,12 Packs
1964.4 out of 5 Stars. 196 reviews
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(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $69.88 $34.94/ea
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$6988
current price $69.88$34.94/ea
From $34.94
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1204.2 out of 5 Stars. 120 reviews
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50+ bought since yesterday First Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT $16.99 $28.80/ea
$1699
current price $16.99$28.80/ea
First Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT
1534.6 out of 5 Stars. 153 reviews
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X-Sense Smoke Detector Carbon Monoxide Detector Combo 10 Year with Display, Standalone Model SC01 Smoke Alarm, 3 Pack From $119.99
2 options
Available in additional 2 optionsFrom$11999
X-Sense Smoke Detector Carbon Monoxide Detector Combo 10 Year with Display, Standalone Model SC01 Smoke Alarm, 3 Pack
6314.5 out of 5 Stars. 631 reviews
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100+ bought since yesterday Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47
3 options
Available in additional 3 optionsFrom$2747
Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
18214.7 out of 5 Stars. 1821 reviews
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Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector From $12.99
From$1299
Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector
314.3 out of 5 Stars. 31 reviews
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Smoke Alarm Detector Home Fire Safety Sensor Alert
Smoke Alarm Detector Home Fire Safety Sensor Alert
424.1 out of 5 Stars. 42 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88
2 options
Available in additional 2 optionsFrom$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
2794.5 out of 5 Stars. 279 reviews
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X-Sense Smoke and Carbon Monoxide Alarm Combo, 10-Year Battery Powered Detector, UL 217 & UL 2034 Certified, SC07, 1-Pack From $39.99
2 options
Available in additional 2 optionsFrom$3999
X-Sense Smoke and Carbon Monoxide Alarm Combo, 10-Year Battery Powered Detector, UL 217 & UL 2034 Certified, SC07, 1-Pack
3414.6 out of 5 Stars. 341 reviews
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SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack From $19.12
9 options
Available in additional 9 optionsFrom$1912
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack
5524.4 out of 5 Stars. 552 reviews
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SITERWELL Hardwired Interconnected Smoke and Carbon Monoxide Detector, 10 Year Product Life Alarm Smoke Carbon Monoxide Detector with 2 AA Batteries Back Up, Smoke and CO Detector Voice Alert,1 Pack From $54.99
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From$5499
SITERWELL Hardwired Interconnected Smoke and Carbon Monoxide Detector, 10 Year Product Life Alarm Smoke Carbon Monoxide Detector with 2 AA Batteries Back Up, Smoke and CO Detector Voice Alert,1 Pack
224.2 out of 5 Stars. 22 reviews
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X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN From $43.99
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From$4399
X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN
1774.7 out of 5 Stars. 177 reviews
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Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery $27.97
$2797
current price $27.97Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery
1614.6 out of 5 Stars. 161 reviews
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Deal SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $22.32
3 options
Available in additional 3 optionsFrom$2232
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
214.6 out of 5 Stars. 21 reviews
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Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $35.97
2 options
Available in additional 2 optionsFrom$3597
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
2333.7 out of 5 Stars. 233 reviews
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Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM From $27.94
3 options
Available in additional 3 optionsFrom$2794
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
7524.6 out of 5 Stars. 752 reviews
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First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup $19.44 Was $24.95
Now$1944
current price Now $19.44, Was $24.95$24.95
First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup
664.7 out of 5 Stars. 66 reviews
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Smoke Detector Home Security Sensor Alert Alarm From $13.39
From$1339
Smoke Detector Home Security Sensor Alert Alarm
84.1 out of 5 Stars. 8 reviews
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Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen $28.96
$2896
current price $28.96Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen
1254.5 out of 5 Stars. 125 reviews
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TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel $39.09 Was $45.99
Now$3909
current price Now $39.09, Was $45.99$45.99
TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel
234.5 out of 5 Stars. 23 reviews
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Deal SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $22.32
Sponsored
From$2232
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
214.6 out of 5 Stars. 21 reviews
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X-Sense Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery, Up to 24 X-Sense Link+ Wireless Alarms, SC01-W, 3-Pack From $119.99
Sponsored
From$11999
X-Sense Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery, Up to 24 X-Sense Link+ Wireless Alarms, SC01-W, 3-Pack
6314.5 out of 5 Stars. 631 reviews
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Deal X-Sense Smoke and Carbon Monoxide Alarm Combo, 10 Year Sealed Battery, Wireless Interconnected Fire & CO Detector, Connects Up to 24 Link+ Devices, 1 PACK, SC06-W From $42.99
2 options
Available in additional 2 optionsFrom$4299
X-Sense Smoke and Carbon Monoxide Alarm Combo, 10 Year Sealed Battery, Wireless Interconnected Fire & CO Detector, Connects Up to 24 Link+ Devices, 1 PACK, SC06-W
6124.6 out of 5 Stars. 612 reviews
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Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $17.99 Was $31.99
Now$1799
current price Now $17.99, Was $31.99$31.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2834.4 out of 5 Stars. 283 reviews
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First Alert 1046834, Electric Precision Detection Smoke Alarms $24.84
$2484
current price $24.84First Alert 1046834, Electric Precision Detection Smoke Alarms
1074.5 out of 5 Stars. 107 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included From $29.97
2 options
Available in additional 2 optionsFrom$2997
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included
1254.5 out of 5 Stars. 125 reviews
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Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84
2 options
Available in additional 2 optionsFrom$3484
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
1623.8 out of 5 Stars. 162 reviews
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BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector $24.99 Was $29.00
Now$2499
current price Now $24.99, Was $29.00$29.00
BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
1414.7 out of 5 Stars. 141 reviews
First Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization $33.99 Was $44.00
Now$3399
current price Now $33.99, Was $44.00$44.00
First Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization
684.2 out of 5 Stars. 68 reviews
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First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $45.80 Was $52.00
Now$4580
current price Now $45.80, Was $52.00$52.00
First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
1244.2 out of 5 Stars. 124 reviews
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack From $65.00
2 options
Available in additional 2 optionsFrom$6500
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack
1483.6 out of 5 Stars. 148 reviews
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First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector $34.90
$3490
current price $34.90First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector
234.5 out of 5 Stars. 23 reviews
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Deal SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 3 Packs From $26.21
9 options
Available in additional 9 optionsFrom$2621
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 3 Packs
1364.4 out of 5 Stars. 136 reviews
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Deal Fixdono Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane in Kitchen, Home, Camper $15.29 Was $31.99
Now$1529
current price Now $15.29, Was $31.99$31.99
Fixdono Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane in Kitchen, Home, Camper
1524.5 out of 5 Stars. 152 reviews
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X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN From $43.99
2 options
Available in additional 2 optionsFrom$4399
X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN
1774.7 out of 5 Stars. 177 reviews
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Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup From $51.00
3 options
Available in additional 3 optionsFrom$5100
Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup
1914 out of 5 Stars. 191 reviews
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Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack From $21.31
3 options
Available in additional 3 optionsFrom$2131
Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack
1344.6 out of 5 Stars. 134 reviews
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X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, SC01, 1-PACK From $39.99
2 options
Available in additional 2 optionsFrom$3999
X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, SC01, 1-PACK
484.4 out of 5 Stars. 48 reviews
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First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795 $36.99
$3699
current price $36.99First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795
264.8 out of 5 Stars. 26 reviews
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