Shop smoke detector

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$243.49
Aaon R77340 Smoke Detector - Ad4s - Accessories
Parts Town
$243.49
Aaon R77340 Smoke Detector - Ad4s - Accessories
Parts Town
$52.00
Smoke And Carbon Monoxide Detector - 9V Battery - ULINE
Uline
$52.00
Smoke And Carbon Monoxide Detector - 9V Battery - ULINE
Uline
$19.00
Smoke Detector - 9V Battery - ULINE
Uline
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Smoke Detector - 9V Battery - ULINE
Uline
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CPD-7051 KIDDE-FENWAL, LLC - Fire Safety & Smoke Detector Supplies
Radwell.com
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CPD-7051 KIDDE-FENWAL, LLC - Fire Safety & Smoke Detector Supplies
Radwell.com
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ASD-PL2F HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
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ASD-PL2F HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
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Smoke Detector - Lithium Battery - ULINE
Uline
$35.00
Smoke Detector - Lithium Battery - ULINE
Uline
$507.80
FST-851RA HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
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FST-851RA HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
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Trane Sen01639 System Sensor - Duct Smoke Detector - Universal - Probes & Sensors
Parts Town
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Trane Sen01639 System Sensor - Duct Smoke Detector - Universal - Probes & Sensors
Parts Town
$226.76
BRK Smoke Alarm: Smoke, 10 Year Sealed Battery, Smoke Detector, Ionization, Sealed Battery [PK/6] Model: SMI110
Grainger
$226.76
BRK Smoke Alarm: Smoke, 10 Year Sealed Battery, Smoke Detector, Ionization, Sealed Battery [PK/6] Model: SMI110
Grainger
$38.20
BRK Smoke Alarm: Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired, 10 Yr Model: SMI105-AC
Grainger
579
$38.20
BRK Smoke Alarm: Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired, 10 Yr Model: SMI105-AC
Grainger
$268.79
Trane Sen01789 Smoke Detector Sensor - Photoelectric - Probes & Sensors
Parts Town
$268.79
Trane Sen01789 Smoke Detector Sensor - Photoelectric - Probes & Sensors
Parts Town
$59.09
Edwards Kir-Hd Smoke/Heat Detector
Gordon Electric Supply
$59.09
Edwards Kir-Hd Smoke/Heat Detector
Gordon Electric Supply
$78.82
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B
Grainger
219
$78.82
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B
Grainger
$394.99
First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
Amazon.com
2K+
Free shipping
$394.99
First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
Amazon.com
$75.45
DB-HR - Siemens Smoke Detector Fire Safety (New)
Electrical.com
$75.45
DB-HR - Siemens Smoke Detector Fire Safety (New)
Electrical.com
$249.99
Gentex Place Kitchen Smart Natural Gas, Smoke And Carbon Monoxide Alarm | Clear
hdsupplysolutions.com
$249.99
Gentex Place Kitchen Smart Natural Gas, Smoke And Carbon Monoxide Alarm | Clear
hdsupplysolutions.com
$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
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First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
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First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
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USI Electric 2-In-1 Hardwired Smoke And Fire Alarm With 10 Year Battery Backup
hdsupplysolutions.com
74
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USI Electric 2-In-1 Hardwired Smoke And Fire Alarm With 10 Year Battery Backup
hdsupplysolutions.com
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First Alert SMI100 9V Alkaline Battery Operated Sensor Smoke Alarm 2 Pack - 5050073
Acme Tools
75
$29.99
First Alert SMI100 9V Alkaline Battery Operated Sensor Smoke Alarm 2 Pack - 5050073
Acme Tools
$29.88
Firex i4618 (21007581) AC Smoke Alarm With Battery Back-Up And False Alarm Control (Upgraded To SMACFEX-20-9003)
Electric Bargain Store
229
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Firex i4618 (21007581) AC Smoke Alarm With Battery Back-Up And False Alarm Control (Upgraded To SMACFEX-20-9003)
Electric Bargain Store
$32.47
Kidde Detect Series 20SD10 10-Year Smoke Alarm 21031466
WebstaurantStore
424
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Kidde Detect Series 20SD10 10-Year Smoke Alarm 21031466
WebstaurantStore
$139.94
System Sensor D4120 4-Wire Duct Smoke Detector, 4-Wire, Photoelectric, Low-Flow (24/120V), D4120 | Supplyhouse.Com
SupplyHouse.com
1
$139.94
System Sensor D4120 4-Wire Duct Smoke Detector, 4-Wire, Photoelectric, Low-Flow (24/120V), D4120 | Supplyhouse.Com
SupplyHouse.com
$40.79
5TC1296 Siemens
WiAutomation US
$40.79
5TC1296 Siemens
WiAutomation US
$6.75
$7.50
Smoke Alarm
Home Guard Supply
10% off
$6.75
$7.50
Smoke Alarm
Home Guard Supply
$48.99
First Alert Battery-Powered Photoelectric Smoke And Carbon Monoxide Combination Pack 2 Each
Ace Hardware
15
$48.99
First Alert Battery-Powered Photoelectric Smoke And Carbon Monoxide Combination Pack 2 Each
Ace Hardware
$349.99
Gentex Place Nursery Smart Air Quality, Smoke Alarm, Carbon Monoxide With Camera | White
hdsupplysolutions.com
$349.99
Gentex Place Nursery Smart Air Quality, Smoke Alarm, Carbon Monoxide With Camera | White
hdsupplysolutions.com
$33.42
STI-8200-W - Omron Smoke Detector Fire Safety (New)
Electrical.com
$33.42
STI-8200-W - Omron Smoke Detector Fire Safety (New)
Electrical.com
$153.52
GSA4098-9714 - Tyco Smoke Detector Fire Safety (New)
Electrical.com
$153.52
GSA4098-9714 - Tyco Smoke Detector Fire Safety (New)
Electrical.com
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$59.97
Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
PrairieGrit
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Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
PrairieGrit
$15,948.67
3.5W Explosion Proof Smoke Detector - C1D1 - 120V AC - Ceiling Mount - IP44 - (2) 3/4" NPT
Larson Electronics
$15,948.67
3.5W Explosion Proof Smoke Detector - C1D1 - 120V AC - Ceiling Mount - IP44 - (2) 3/4" NPT
Larson Electronics
$23.95
First Alert SMI100 Battery Smoke Alarm
Fire Supply Depot
$23.95
First Alert SMI100 Battery Smoke Alarm
Fire Supply Depot
$139.99
First Alert SC5 Wifi Battery-Powered Electrochemical/Photoelectric Smoke And Carbon Monoxide Detecto
Ace Hardware
$139.99
First Alert SC5 Wifi Battery-Powered Electrochemical/Photoelectric Smoke And Carbon Monoxide Detecto
Ace Hardware
$62.99
First Alert SMICO100-AC Hardwire 2-In-1 Smoke & CO Alarm With Battery Backup - 5050098
Acme Tools
99
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First Alert SMICO100-AC Hardwire 2-In-1 Smoke & CO Alarm With Battery Backup - 5050098
Acme Tools
$211.09
System Sensor D4120W Duct Smoke Detector (24/120V), D4120W | Supplyhouse.Com
SupplyHouse.com
9
$211.09
System Sensor D4120W Duct Smoke Detector (24/120V), D4120W | Supplyhouse.Com
SupplyHouse.com
$205.26
System Sensor DUCTSD 4-Wire Photoelectric Duct Smoke Detector, DUCTSD | Supplyhouse.Com
SupplyHouse.com
$205.26
System Sensor DUCTSD 4-Wire Photoelectric Duct Smoke Detector, DUCTSD | Supplyhouse.Com
SupplyHouse.com
Ask Kenji Anything: Tools, Woks, Knives, Stew, and Smoke Detectors (a.k.a. “Cooking Detectors”)
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YouTubeJ. Kenji López-Alt
Ask Kenji Anything: Tools, Woks, Knives, Stew, and Smoke Detectors (a.k.a. “Cooking Detectors”)
Watch this video ad-free and get the an abridged transcript by becoming a Super Frienji of Kenji. Join the club to get the full build, trade notes with fellow kitchen obsessives, and hang with a community of cooks and food nerds swapping tips, stories, and secrets: https://www.patreon.com/posts/147104710 0:00 – Intro / Pantry Chaos – Going ...
23.4K views6 days ago
How Smoke Detectors Work: A Complete Guide
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Photoelectric Vs Ionization Smoke Detector: Which Is More Effective? [2025]
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7 Best Smart Smoke Detector in 2025
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How to Install Smoke and Carbon Monoxide Detectors | Ask This Old House
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Shop smoke detector

Sponsored
About our ads
$59.09
Edwards Kir-Hd Smoke/Heat Detector
Gordon Electric Supply
$59.09
Edwards Kir-Hd Smoke/Heat Detector
Gordon Electric Supply
$78.82
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B
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System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B
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First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
Amazon.com
2K+
Free shipping
$394.99
First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
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$75.45
DB-HR - Siemens Smoke Detector Fire Safety (New)
Electrical.com
$75.45
DB-HR - Siemens Smoke Detector Fire Safety (New)
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$249.99
Gentex Place Kitchen Smart Natural Gas, Smoke And Carbon Monoxide Alarm | Clear
hdsupplysolutions.com
$249.99
Gentex Place Kitchen Smart Natural Gas, Smoke And Carbon Monoxide Alarm | Clear
hdsupplysolutions.com
$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
$13.38
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
39
$13.38
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
$34.99
USI Electric 2-In-1 Hardwired Smoke And Fire Alarm With 10 Year Battery Backup
hdsupplysolutions.com
74
$34.99
USI Electric 2-In-1 Hardwired Smoke And Fire Alarm With 10 Year Battery Backup
hdsupplysolutions.com
$29.99
First Alert SMI100 9V Alkaline Battery Operated Sensor Smoke Alarm 2 Pack - 5050073
Acme Tools
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$29.99
First Alert SMI100 9V Alkaline Battery Operated Sensor Smoke Alarm 2 Pack - 5050073
Acme Tools
$29.88
Firex i4618 (21007581) AC Smoke Alarm With Battery Back-Up And False Alarm Control (Upgraded To SMACFEX-20-9003)
Electric Bargain Store
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Firex i4618 (21007581) AC Smoke Alarm With Battery Back-Up And False Alarm Control (Upgraded To SMACFEX-20-9003)
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Kidde Detect Series 20SD10 10-Year Smoke Alarm 21031466
WebstaurantStore
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Kidde Detect Series 20SD10 10-Year Smoke Alarm 21031466
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$139.94
System Sensor D4120 4-Wire Duct Smoke Detector, 4-Wire, Photoelectric, Low-Flow (24/120V), D4120 | Supplyhouse.Com
SupplyHouse.com
1
$139.94
System Sensor D4120 4-Wire Duct Smoke Detector, 4-Wire, Photoelectric, Low-Flow (24/120V), D4120 | Supplyhouse.Com
SupplyHouse.com
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5TC1296 Siemens
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First Alert Battery-Powered Photoelectric Smoke And Carbon Monoxide Combination Pack 2 Each
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First Alert Battery-Powered Photoelectric Smoke And Carbon Monoxide Combination Pack 2 Each
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Gentex Place Nursery Smart Air Quality, Smoke Alarm, Carbon Monoxide With Camera | White
hdsupplysolutions.com
$349.99
Gentex Place Nursery Smart Air Quality, Smoke Alarm, Carbon Monoxide With Camera | White
hdsupplysolutions.com
$33.42
STI-8200-W - Omron Smoke Detector Fire Safety (New)
Electrical.com
$33.42
STI-8200-W - Omron Smoke Detector Fire Safety (New)
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GSA4098-9714 - Tyco Smoke Detector Fire Safety (New)
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GSA4098-9714 - Tyco Smoke Detector Fire Safety (New)
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Shop smoke detector

Sponsored
About our ads
$243.49
Aaon R77340 Smoke Detector - Ad4s - Accessories
Parts Town
$243.49
Aaon R77340 Smoke Detector - Ad4s - Accessories
Parts Town
$52.00
Smoke And Carbon Monoxide Detector - 9V Battery - ULINE
Uline
$52.00
Smoke And Carbon Monoxide Detector - 9V Battery - ULINE
Uline
$19.00
Smoke Detector - 9V Battery - ULINE
Uline
$19.00
Smoke Detector - 9V Battery - ULINE
Uline
$467.09
CPD-7051 KIDDE-FENWAL, LLC - Fire Safety & Smoke Detector Supplies
Radwell.com
$467.09
CPD-7051 KIDDE-FENWAL, LLC - Fire Safety & Smoke Detector Supplies
Radwell.com
$250.29
ASD-PL2F HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
5
$250.29
ASD-PL2F HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$35.00
Smoke Detector - Lithium Battery - ULINE
Uline
$35.00
Smoke Detector - Lithium Battery - ULINE
Uline
$507.80
FST-851RA HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$507.80
FST-851RA HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$206.79
Trane Sen01639 System Sensor - Duct Smoke Detector - Universal - Probes & Sensors
Parts Town
$206.79
Trane Sen01639 System Sensor - Duct Smoke Detector - Universal - Probes & Sensors
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BRK Smoke Alarm: Smoke, 10 Year Sealed Battery, Smoke Detector, Ionization, Sealed Battery [PK/6] Model: SMI110
Grainger
$226.76
BRK Smoke Alarm: Smoke, 10 Year Sealed Battery, Smoke Detector, Ionization, Sealed Battery [PK/6] Model: SMI110
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BRK Smoke Alarm: Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired, 10 Yr Model: SMI105-AC
Grainger
579
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BRK Smoke Alarm: Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired, 10 Yr Model: SMI105-AC
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$268.79
Trane Sen01789 Smoke Detector Sensor - Photoelectric - Probes & Sensors
Parts Town
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Trane Sen01789 Smoke Detector Sensor - Photoelectric - Probes & Sensors
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$59.09
Edwards Kir-Hd Smoke/Heat Detector
Gordon Electric Supply
$59.09
Edwards Kir-Hd Smoke/Heat Detector
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$78.82
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired Model: 2W-B
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First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
Amazon.com
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Free shipping
$394.99
First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 12-Pack
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Gentex Place Kitchen Smart Natural Gas, Smoke And Carbon Monoxide Alarm | Clear
hdsupplysolutions.com
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$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
$642.24
BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded To SMI100-AC)
Electric Bargain Store
$13.38
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
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$13.38
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
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