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Heating, Cooling, & Air QualitySafety Equipment and GearAlarm SystemsAll Home SecurityCarbon Monoxide AlarmsDimmers, Switches, and Wall PlatesFire SafetyFirst AlertHome SafetyHome Safety by BrandKiddePersonal PreparednessPersonal SafetySafety DetectorsSurveillanceUniversal Security InstrumentsWildfire Prep
Fire Sensor(160)
Uses item details. Price when purchased online
SITERWELL Smoke Detector,Photoelectric Sensor, Fire Alarm,Low Battery,Fault Warning for House and Bedroom, 4 Packs From $25.99

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From$2599
SITERWELL Smoke Detector,Photoelectric Sensor, Fire Alarm,Low Battery,Fault Warning for House and Bedroom, 4 Packs
1204.4 out of 5 Stars. 120 reviews
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Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included) $49.99

Sponsored
$4999
current price $49.99Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)
25 out of 5 Stars. 2 reviews
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SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack From $26.09

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From$2609
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack
4284.4 out of 5 Stars. 428 reviews
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cken Coh Infrared Sensor to Prevent Cop Den from Being Crushed Auoor Opener Kits W/Light Sensor Induction Chicken Coop Door withickto Chicken Guard Door $1,299.99

Sponsored
$1,29999
current price $1,299.99cken Coh Infrared Sensor to Prevent Cop Den from Being Crushed Auoor Opener Kits W/Light Sensor Induction Chicken Coop Door withickto Chicken Guard Door
50+ bought since yesterday 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
834.5 out of 5 Stars. 83 reviews
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100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $18.99

2 options
Available in additional 2 optionsFrom$1899
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
5984.4 out of 5 Stars. 598 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
35 out of 5 Stars. 3 reviews
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2PCS Smoke Alarm Detector Home Safety Sensor Alert From $17.79
From$1779
2PCS Smoke Alarm Detector Home Safety Sensor Alert
34.7 out of 5 Stars. 3 reviews
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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 $25.99

8 options
Available in additional 8 optionsFrom$2599
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
1204.4 out of 5 Stars. 120 reviews
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Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display $21.66

$2166
current price $21.66Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display
15 out of 5 Stars. 1 reviews
SITERWELL Smoke Detector, 9V battery,Fire Alarm,Magnetic Fastening Kit, Smoke Alarm,Photoelectric Sensor,Low Battery Warning for House, ETL-9th Listed, GS509A, 4 Packs From $26.09

9 options
Available in additional 9 optionsFrom$2609
SITERWELL Smoke Detector, 9V battery,Fire Alarm,Magnetic Fastening Kit, Smoke Alarm,Photoelectric Sensor,Low Battery Warning for House, ETL-9th Listed, GS509A, 4 Packs
4284.4 out of 5 Stars. 428 reviews
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SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $23.24

3 options
Available in additional 3 optionsFrom$2324
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
64.8 out of 5 Stars. 6 reviews
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Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts From $49.96

2 options
Available in additional 2 optionsFrom$4996
Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts
2754.5 out of 5 Stars. 275 reviews
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Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup From $34.94

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Available in additional 2 optionsFrom$3494
Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1014.3 out of 5 Stars. 101 reviews
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50+ bought since yesterday Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included From $38.97

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Available in additional 3 optionsFrom$3897
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
6194.5 out of 5 Stars. 619 reviews
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Kidde 10-Year Battery Smoke Detector, Voice Alerts & LED Warning Lights $46.74

$4674
current price $46.74Kidde 10-Year Battery Smoke Detector, Voice Alerts & LED Warning Lights
104.1 out of 5 Stars. 10 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
2104.5 out of 5 Stars. 210 reviews
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Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display $21.78

$2178
current price $21.78Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display
50+ bought since yesterday Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch From $65.00

2 options
Available in additional 2 optionsFrom$6500
Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
2464.4 out of 5 Stars. 246 reviews
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Fire-Lite AD355 intelligent multi-sensor Detector Set of two(2) $236.00

$23600
current price $236.00Fire-Lite AD355 intelligent multi-sensor Detector Set of two(2)
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 2 Packs From $19.19

9 options
Available in additional 9 optionsFrom$1919
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 2 Packs
964.5 out of 5 Stars. 96 reviews
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Universal Security Instruments Sensing Plus AMIB3051SC Multi Criteria Bedroom Smoke & Fire Alarm

2 options
Available in additional 2 optionsUniversal Security Instruments Sensing Plus AMIB3051SC Multi Criteria Bedroom Smoke & Fire Alarm
464.5 out of 5 Stars. 46 reviews
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Kidde Firex Battery Operated Kitchen Smoke Detector with Photoelectric Sensor $18.00

$1800
current price $18.00Kidde Firex Battery Operated Kitchen Smoke Detector with Photoelectric Sensor
142 out of 5 Stars. 14 reviews
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Honeywell Home Flame Sensor,R C554A1463 $61.82

$6182
current price $61.82Honeywell Home Flame Sensor,R C554A1463
First Alert BRK SC9120B 85-Decibel Ionization Hardwired Smoke and Electrochemical Carbon Monoxide Detector with Battery Backup

First Alert BRK SC9120B 85-Decibel Ionization Hardwired Smoke and Electrochemical Carbon Monoxide Detector with Battery Backup
3294.6 out of 5 Stars. 329 reviews
Universal Security Instruments, Sensing Plus, Combo Smoke, Fire, and Carbon Monoxide Alarm, Multi-Criteria, with 10-Year Battery $58.00

$5800
current price $58.00Universal Security Instruments, Sensing Plus, Combo Smoke, Fire, and Carbon Monoxide Alarm, Multi-Criteria, with 10-Year Battery
104.8 out of 5 Stars. 10 reviews
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Universal Security Instruments, Sensing Plus, Combo Smoke, Fire & Carbon Monoxide Alarm, Multi-Criteria Detection, with 10-Year Battery, 4 Pack From $58.00

2 options
Available in additional 2 optionsFrom$5800
Universal Security Instruments, Sensing Plus, Combo Smoke, Fire & Carbon Monoxide Alarm, Multi-Criteria Detection, with 10-Year Battery, 4 Pack
234.5 out of 5 Stars. 23 reviews
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50+ bought since yesterday Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch From $29.22

2 options
Available in additional 2 optionsFrom$2922
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
2914 out of 5 Stars. 291 reviews
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Fire-Lite AD355 intelligent multi-sensor Detector Set of six(6) $476.00

$47600
current price $476.00Fire-Lite AD355 intelligent multi-sensor Detector Set of six(6)
EcoNest Portable Alarm Detector For Home And Fire Device With Mute Button And LED Indicator Easy Installation Plug Standard

EcoNest Portable Alarm Detector For Home And Fire Device With Mute Button And LED Indicator Easy Installation Plug Standard
Kidde Hardwired Interconnectable Smoke and Carbon Monoxide Detector with AA Battery Backup and Voice Alerts $53.00

$5300
current price $53.00Kidde Hardwired Interconnectable Smoke and Carbon Monoxide Detector with AA Battery Backup and Voice Alerts
903.7 out of 5 Stars. 90 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector From $60.00

2 options
Available in additional 2 optionsFrom$6000
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
3754.2 out of 5 Stars. 375 reviews
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Universal Security Instruments, Sensing Plus, Hardwired, Combo Smoke, Fire & Carbon Monoxide Alarm, with 10-Year Battery Backup From $59.00

2 options
Available in additional 2 optionsFrom$5900
Universal Security Instruments, Sensing Plus, Hardwired, Combo Smoke, Fire & Carbon Monoxide Alarm, with 10-Year Battery Backup
684.4 out of 5 Stars. 68 reviews
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SITERWELL Smoke and Carbon Monoxide Detector 10-Year Battery, Wireless Interconnected Smoke Alarm Carbon Monoxide Detector with Dual Language Voice Alerts for Home and Babyroom, 1 Pack From $49.99

2 options
Available in additional 2 optionsFrom$4999
SITERWELL Smoke and Carbon Monoxide Detector 10-Year Battery, Wireless Interconnected Smoke Alarm Carbon Monoxide Detector with Dual Language Voice Alerts for Home and Babyroom, 1 Pack
304.6 out of 5 Stars. 30 reviews
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Fire-Lite B200S-LF-WH Intelligent Addressable Sounder Base, Low-Frequency, White $139.89

$13989
current price $139.89Fire-Lite B200S-LF-WH Intelligent Addressable Sounder Base, Low-Frequency, White
First Alert 10 Year Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector $44.98

$4498
current price $44.98First Alert 10 Year Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector
584.7 out of 5 Stars. 58 reviews
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Fire-Lite AD355 intelligent multi-sensor Detector Set of seven(7) $361.11

$36111
current price $361.11Fire-Lite AD355 intelligent multi-sensor Detector Set of seven(7)
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included From $29.22

2 options
Available in additional 2 optionsFrom$2922
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included
1094.4 out of 5 Stars. 109 reviews
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Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included From $49.97

2 options
Available in additional 2 optionsFrom$4997
Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included
1904.6 out of 5 Stars. 190 reviews
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Clearance Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE From $27.94

2 options
Available in additional 2 optionsFrom$2794
Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE
604.4 out of 5 Stars. 60 reviews
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First Alert Slim Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector $39.95 Was $56.10

Now$3995
current price Now $39.95, Was $56.10$56.10
First Alert Slim Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector
234.5 out of 5 Stars. 23 reviews
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BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector $19.25 Was $29.00

Now$1925
current price Now $19.25, Was $29.00$29.00
BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
884.6 out of 5 Stars. 88 reviews
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BotaniNest Portable Alarm Detector For Home And Fire Device With Mute Button And LED Indicator Easy Installation Plug Standard

BotaniNest Portable Alarm Detector For Home And Fire Device With Mute Button And LED Indicator Easy Installation Plug Standard
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
2053.6 out of 5 Stars. 205 reviews
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