Smoke Detectors in Safety Detectors

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BRK Battery-Powered Ionization Smoke Detector $17.97

BRK Battery-Powered Ionization Smoke Detector
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current price $17.97

BRK Battery-Powered Ionization Smoke Detector

5 out of 5 Stars. 5 reviews
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SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack $18.99

SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack
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current price $18.99
Options from $18.99 – $113.09

SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack

4.4 out of 5 Stars. 324 reviews
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SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs $81.99

SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs
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current price $81.99
Options from $19.19

SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs

4.5 out of 5 Stars. 75 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 $23.99

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
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current price $23.99
Options from $23.99 – $149.99

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

4.4 out of 5 Stars. 82 reviews
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First Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT $16.99 $28.80/ea

First Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT
current price $16.99
$28.80/ea

First Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT

4.4 out of 5 Stars. 53 reviews
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Popular pick Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included $18.99

Popular pick
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
Available in additional 2 options
current price $18.99
Options from $18.99 – $35.78

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included

4.4 out of 5 Stars. 480 reviews
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Best seller Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery $27.97

Best seller
Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery
current price $27.97

Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery

4.5 out of 5 Stars. 45 reviews
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10 Year Smoke CO Alarm w Voice $53.95

10 Year Smoke CO Alarm w Voice
current price $53.95

10 Year Smoke CO Alarm w Voice

3.9 out of 5 Stars. 18 reviews
Free shipping, arrives in 3+ days

SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack $18.99

SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack
Available in additional 9 options
current price $18.99
Options from $18.99 – $113.09

SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm,Magnetic Fastening Kit, Smoke Alarm, Photoelectric Sensor,Low Battery Warning Function, ETL-9th Listed, GS509A, 1 Pack

4.4 out of 5 Stars. 324 reviews
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3V Tamper Proof Photo Electric Smoke And CO Detector $29.99 Was $65.57

3V Tamper Proof Photo Electric Smoke And CO Detector
current price Now $29.99, Was $65.57

3V Tamper Proof Photo Electric Smoke And CO Detector

4.3 out of 5 Stars. 10 reviews
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First Alert 1046834, Electric Precision Detection Smoke Alarms $24.84 Was $33.00

First Alert 1046834, Electric Precision Detection Smoke Alarms
current price Now $24.84, Was $33.00

First Alert 1046834, Electric Precision Detection Smoke Alarms

4.5 out of 5 Stars. 67 reviews
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(2 pack) Kidde Micro 4", 10-Year Sealed Battery Ionization Smoke Alarm, Model i1040, KIDDE $32.17 $16.09/ea

(2 pack) Kidde Micro 4", 10-Year Sealed Battery Ionization Smoke Alarm, Model i1040, KIDDE
Available in additional 2 options
current price $32.17
$16.09/ea

(2 pack) Kidde Micro 4", 10-Year Sealed Battery Ionization Smoke Alarm, Model i1040, KIDDE

4 out of 5 Stars. 472 reviews
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First Alert 1046731, Battery Photoelectric Sensor Smoke Alarm $29.99 Was $35.05

First Alert 1046731, Battery Photoelectric Sensor Smoke Alarm
current price Now $29.99, Was $35.05

First Alert 1046731, Battery Photoelectric Sensor Smoke Alarm

4.2 out of 5 Stars. 14 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch $29.22

Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
Available in additional 2 options
current price $29.22
Options from $29.22 – $62.94

Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch

3.9 out of 5 Stars. 237 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 $23.99

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
Available in additional 8 options
current price $23.99
Options from $23.99 – $149.99

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

4.4 out of 5 Stars. 82 reviews
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SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs $81.99

SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs
Available in additional 9 options
current price $81.99
Options from $19.19

SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs

4.5 out of 5 Stars. 75 reviews
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BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector $19.25 Was $29.00

BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
current price Now $19.25, Was $29.00

BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector

4.6 out of 5 Stars. 60 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack $36.88 $18.44/ea

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
Available in additional 2 options
current price $36.88
$18.44/ea

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack

4.5 out of 5 Stars. 184 reviews
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Universal Security Instruments Hardwire Smoke, Fire, Carbon Monxide, with Battery Backup, Voice Alert Alarm $64.97

Universal Security Instruments Hardwire Smoke, Fire, Carbon Monxide, with Battery Backup, Voice Alert Alarm
current price $64.97

Universal Security Instruments Hardwire Smoke, Fire, Carbon Monxide, with Battery Backup, Voice Alert Alarm

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Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup $37.79

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
Available in additional 2 options
current price $37.79
Options from $37.79 – $75.58

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup

3.6 out of 5 Stars. 188 reviews
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Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $34.94

Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
Available in additional 2 options
current price $34.94
Options from $34.94 – $69.88

Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup

4.3 out of 5 Stars. 89 reviews
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First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack $59.99

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack
current price $59.99

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack

4.3 out of 5 Stars. 15 reviews
Free shipping, arrives in 3+ days

First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400, 1046718PT $34.99 $24.99/ea

First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400, 1046718PT
current price $34.99
$24.99/ea

First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400, 1046718PT

4.8 out of 5 Stars. 5 reviews
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First Alert 1046828 Battery-Operated Smoke Alarm, 2-Pack, 9V Batteries Included $24.46

First Alert 1046828 Battery-Operated Smoke Alarm, 2-Pack, 9V Batteries Included
current price $24.46

First Alert 1046828 Battery-Operated Smoke Alarm, 2-Pack, 9V Batteries Included

4.6 out of 5 Stars. 124 reviews
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Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch $34.84

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
Available in additional 2 options
current price $34.84
Options from $34.84 – $63.00

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch

3.6 out of 5 Stars. 133 reviews
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Clearance Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE $27.94 Was $36.47

Clearance
Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE
Available in additional 2 options
current price Now $27.94, Was $36.47
Options from $27.94 – $111.76

Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE

4.3 out of 5 Stars. 56 reviews
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First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White $21.99

First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White
current price $21.99

First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White

4.4 out of 5 Stars. 38 reviews
Free shipping, arrives in 3+ days

Kidde Firex Battery Operated Kitchen Smoke Detector with Photoelectric Sensor $18.00

Kidde Firex Battery Operated Kitchen Smoke Detector with Photoelectric Sensor
current price $18.00

Kidde Firex Battery Operated Kitchen Smoke Detector with Photoelectric Sensor

2 out of 5 Stars. 14 reviews
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First Alert Wireless Interconnect Battery-Powered Smoke Alarm with Voice Alerts, 1 pk $41.99

First Alert Wireless Interconnect Battery-Powered Smoke Alarm with Voice Alerts, 1 pk
current price $41.99

First Alert Wireless Interconnect Battery-Powered Smoke Alarm with Voice Alerts, 1 pk

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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

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First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector $33.99

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector
current price $33.99

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector

4.5 out of 5 Stars. 11 reviews
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First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup $119.99 Was $139.99

First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup
current price Now $119.99, Was $139.99

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

Free shipping, arrives in 3+ days

Universal Security Instruments Sensing Plus AMIB3051SC Multi Criteria Bedroom Smoke & Fire Alarm $27.97

Universal Security Instruments Sensing Plus AMIB3051SC Multi Criteria Bedroom Smoke & Fire Alarm
Available in additional 2 options
current price $27.97
Options from $27.97 – $223.76

Universal Security Instruments Sensing Plus AMIB3051SC Multi Criteria Bedroom Smoke & Fire Alarm

4.5 out of 5 Stars. 43 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included $29.22

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included
Available in additional 2 options
current price $29.22
Options from $29.22 – $54.00

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included

4.4 out of 5 Stars. 103 reviews
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BRK Battery-Powered Ionization Smoke Detector $17.97

BRK Battery-Powered Ionization Smoke Detector
current price $17.97

BRK Battery-Powered Ionization Smoke Detector

5 out of 5 Stars. 5 reviews
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First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795 $34.99

First Alert SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts, 1046795
current price $34.99

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

4.9 out of 5 Stars. 19 reviews
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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)

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Universal Security Instruments Battery, Smoke & Fire Alarm $17.97

Universal Security Instruments Battery, Smoke & Fire Alarm
current price $17.97

Universal Security Instruments Battery, Smoke & Fire Alarm

3 out of 5 Stars. 2 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 $23.24

SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
Available in additional 3 options
current price $23.24
Options from $23.24 – $76.15

SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack

4.5 out of 5 Stars. 2 reviews
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Kidde 10-Year Battery Smoke Detector, Voice Alerts & LED Warning Lights $46.74

Kidde 10-Year Battery Smoke Detector, Voice Alerts & LED Warning Lights
current price $46.74

Kidde 10-Year Battery Smoke Detector, Voice Alerts & LED Warning Lights

4.4 out of 5 Stars. 8 reviews
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First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup $29.99

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup
current price $29.99

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

4.8 out of 5 Stars. 30 reviews
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Clearance! Home Decor Measuring Tools : Combustible Alarm Home and Kitchen Device White,10.5X10.5X3.3cm

Clearance! Home Decor Measuring Tools : Combustible Alarm Home and Kitchen Device White,10.5X10.5X3.3cm

Clearance! Home Decor Measuring Tools : Combustible Alarm Home and Kitchen Device White,10.5X10.5X3.3cm

About Smoke Detectors in Safety Detectors - Walmart.com

Factors to Consider When Choosing a Smoke Detector

As you shop Walmart's assortment of smoke and carbon monoxide detectors, look for the following.

Sensor: Smoke detectors have one of two types of sensors or a combination.

  • Ionization: best for detecting fast-burning fires; great for bedrooms and basements.
  • Photoelectric: best for detecting slow-burning fires; great for kitchens, bathrooms and hallways.

Power Source: Choose a battery-powered smoke detector if you want an easy-to-install option. Check and replace batteries every six months. Select a hardwired smoke detector if you don't want to worry about batteries.