Smoke Detector Testers(13)
Uses item details. Price when purchased online
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack From $19.12

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From$1912
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack
5474.4 out of 5 Stars. 547 reviews
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SITERWELL Smoke Detector, 10 Year Battery,Photoelectric Sensor, Fire Alarm,Low Battery,12 Packs From $23.68

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From$2368
SITERWELL Smoke Detector, 10 Year Battery,Photoelectric Sensor, Fire Alarm,Low Battery,12 Packs
1924.4 out of 5 Stars. 192 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 $24.80

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From$2480
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
154.9 out of 5 Stars. 15 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

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$2797
current price $27.97Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery
1514.5 out of 5 Stars. 151 reviews
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Mitco N27-16M: Complete Combustion Smoke Test Kit $147.24

$14724
current price $147.24Mitco N27-16M: Complete Combustion Smoke Test Kit
Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm

Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm
Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm $81.20

$8120
current price $81.20Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs From $26.21

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From$2621
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL-9th Listed, GS562A, 4 Packs
1344.4 out of 5 Stars. 134 reviews
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Rely Essentials 5400 Smoke Alarm – Hardwired AC Powered with Battery Backup - Photoelectric Smoke Detector - Interconnect, Easy Install – 1 Pack $29.99

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$2999
current price $29.99Rely Essentials 5400 Smoke Alarm – Hardwired AC Powered with Battery Backup - Photoelectric Smoke Detector - Interconnect, Easy Install – 1 Pack
124.8 out of 5 Stars. 12 reviews
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Rely Essentials 4500 Smoke Alarm - Battery Operated Photoelectric Sensor Smoke Detector - Compact 4-Inch Design - Home Fire Protection - Easy Installation - 1 Pack $25.49

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$2549
current price $25.49Rely Essentials 4500 Smoke Alarm - Battery Operated Photoelectric Sensor Smoke Detector - Compact 4-Inch Design - Home Fire Protection - Easy Installation - 1 Pack
124.6 out of 5 Stars. 12 reviews
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Rely 7600 Hardwired Smoke Detector with Battery Backup, Interconnected AC Powered Alarm, Photoelectric Sensor, RealAlerts Voice & LED Warning System, 1-Pack $52.99

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$5299
current price $52.99Rely 7600 Hardwired Smoke Detector with Battery Backup, Interconnected AC Powered Alarm, Photoelectric Sensor, RealAlerts Voice & LED Warning System, 1-Pack
45 out of 5 Stars. 4 reviews
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Rely Essentials 5500 Smoke Detector - 10 Year Sealed Battery - Photoelectric Sensor Smoke Detector - Compact 4-Inch Design- Home Fire Protection - Easy Installation - 1 Pack $25.49

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$2549
current price $25.49Rely Essentials 5500 Smoke Detector - 10 Year Sealed Battery - Photoelectric Sensor Smoke Detector - Compact 4-Inch Design- Home Fire Protection - Easy Installation - 1 Pack
124.8 out of 5 Stars. 12 reviews
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Rely RealAlerts 10-Year Battery Smoke Alarm with Voice Alerts and LED Warning, 1 Pack $44.99

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$4499
current price $44.99Rely RealAlerts 10-Year Battery Smoke Alarm with Voice Alerts and LED Warning, 1 Pack
74.7 out of 5 Stars. 7 reviews
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Rely Essentials 4500 Smoke Alarm - Battery Operated Photoelectric Sensor Smoke Detector - Compact 4-Inch Design - Home Fire Protection - Easy Installation - 1 Pack $25.49

$2549
current price $25.49Rely Essentials 4500 Smoke Alarm - Battery Operated Photoelectric Sensor Smoke Detector - Compact 4-Inch Design - Home Fire Protection - Easy Installation - 1 Pack
124.6 out of 5 Stars. 12 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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First Alert SMI100-AC Hardwire Interconnect Smoke Detector with Battery Backup, 6-Pack $105.97

$10597
current price $105.97First Alert SMI100-AC Hardwire Interconnect Smoke Detector with Battery Backup, 6-Pack
44 out of 5 Stars. 4 reviews
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BRK 6 PK With Voice Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide Detector $299.99

$29999
current price $299.99BRK 6 PK With Voice Hard-Wired w/Battery Back-Up Photoelectric Smoke and Carbon Monoxide Detector
15 out of 5 Stars. 1 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 $45.99

$4599
current price $45.99TOPTES 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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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
1514.5 out of 5 Stars. 151 reviews
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M Buder Digital Voltage Detector 12V-300V Non-Contact AC Voltage Tester Pen with LCD Display, Sound and Light Alarm, LED Flashlight, Zero Fire Wire Recognition, 6.3 inches / 16 cm Length, Black/Red $11.34

$1134
current price $11.34M Buder Digital Voltage Detector 12V-300V Non-Contact AC Voltage Tester Pen with LCD Display, Sound and Light Alarm, LED Flashlight, Zero Fire Wire Recognition, 6.3 inches / 16 cm Length, Black/Red
4PCS Smoke Alarm Detector Home Safety Sensor Alert From $27.99
From$2799
4PCS Smoke Alarm Detector Home Safety Sensor Alert
534.2 out of 5 Stars. 53 reviews
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12 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $124.99
From$12499
12 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
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SITERWELL Smoke Detector, Smoke Detector 10 Year Battery with Photoelectric Sensor, Fire Alarm with Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 2 Packs From $23.68

8 options
Available in additional 8 optionsFrom$2368
SITERWELL Smoke Detector, Smoke Detector 10 Year Battery with Photoelectric Sensor, Fire Alarm with Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 2 Packs
1924.4 out of 5 Stars. 192 reviews
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100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $19.88

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Available in additional 2 optionsFrom$1988
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
7964.5 out of 5 Stars. 796 reviews
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SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL Listed, GS562A, 1 Pack 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 Listed, GS562A, 1 Pack
1344.4 out of 5 Stars. 134 reviews
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4 Pack Smoke Detector Home Security Sensor Alert Alarm From $31.99
From$3199
4 Pack Smoke Detector Home Security Sensor Alert Alarm
84.1 out of 5 Stars. 8 reviews
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Suodoka Digital Voltage Detector 12V300V NonContact Tester with LCD, Sound & Light Alarm, Zero FireWire Recognition & Flashlight $12.34

$1234
current price $12.34Suodoka Digital Voltage Detector 12V300V NonContact Tester with LCD, Sound & Light Alarm, Zero FireWire Recognition & Flashlight
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
5474.4 out of 5 Stars. 547 reviews
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50+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88

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Available in additional 2 optionsFrom$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
2714.5 out of 5 Stars. 271 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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SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $24.80

3 options
Available in additional 3 optionsFrom$2480
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
154.9 out of 5 Stars. 15 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch From $32.47

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Available in additional 2 optionsFrom$3247
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
3694.1 out of 5 Stars. 369 reviews
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First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery
4874.5 out of 5 Stars. 487 reviews
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
154.4 out of 5 Stars. 15 reviews
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Rely 5300-2-in-1 Smoke & Carbon Monoxide Detector - Battery-Operated with Siren, Voice Alerts and LED Lights - Fire & CO Protection - 1 Pack $47.99

$4799
current price $47.99Rely 5300-2-in-1 Smoke & Carbon Monoxide Detector - Battery-Operated with Siren, Voice Alerts and LED Lights - Fire & CO Protection - 1 Pack
124.8 out of 5 Stars. 12 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

3 options
Available in additional 3 optionsFrom$3897
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
7584.5 out of 5 Stars. 758 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack From $57.00

2 options
Available in additional 2 optionsFrom$5700
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack
724.6 out of 5 Stars. 72 reviews
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SITERWELL Smoke Detector Carbon Monoxide Detector Combo,Reduced Nuisance, Bilingual Voice Alerts,1 pack From $52.99

3 options
Available in additional 3 optionsFrom$5299
SITERWELL Smoke Detector Carbon Monoxide Detector Combo,Reduced Nuisance, Bilingual Voice Alerts,1 pack
494.6 out of 5 Stars. 49 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
894.3 out of 5 Stars. 89 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector From $60.00

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Available in additional 2 optionsFrom$6000
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
4244.2 out of 5 Stars. 424 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
2323.7 out of 5 Stars. 232 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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Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup From $34.94

2 options
Available in additional 2 optionsFrom$3494
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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Flash Deal X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN From $35.99

2 options
Available in additional 2 optionsFrom$3599
X-Sense Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Detector, UL Certified, 1 PACK, XP0H-SN
1764.7 out of 5 Stars. 176 reviews
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SITERWELL Hardwired Interconnected Smoke Detector Carbon Monoxide Detector Combo with 2 AA Batteries Back Up, 2 in 1 Smoke and CO Detector with Voice Alert, Smoke and CO Alarm with Self-Check, 1 Pack From $41.39

3 options
Available in additional 3 optionsFrom$4139
SITERWELL Hardwired Interconnected Smoke Detector Carbon Monoxide Detector Combo with 2 AA Batteries Back Up, 2 in 1 Smoke and CO Detector with Voice Alert, Smoke and CO Alarm with Self-Check, 1 Pack
384.4 out of 5 Stars. 38 reviews
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HYROOY XT30 Smoke Stopper Connecting Line Short Tester for Models Modules Pcb $10.83

$1083
current price $10.83HYROOY XT30 Smoke Stopper Connecting Line Short Tester for Models Modules Pcb
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack From $65.00

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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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Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm $29.97

$2997
current price $29.97Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm
25 out of 5 Stars. 2 reviews
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Rely Essentials 5400 Smoke Alarm Hardwired AC Powered with Battery Backup - Photoelectric Smoke Detector - Interconnect, Easy Install 1 Pack $29.99

$2999
current price $29.99Rely Essentials 5400 Smoke Alarm Hardwired AC Powered with Battery Backup - Photoelectric Smoke Detector - Interconnect, Easy Install 1 Pack
124.8 out of 5 Stars. 12 reviews
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