Smoke Detector Testers(15)
Uses item details. Price when purchased online
SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm with Magnetic Fastening Kit, Smoke Alarm with Photoelectric Sensor and Low Battery Warning Function for House, ETL-9th Listed, GS509A, 5 Pack From $37.10
Sponsored
From$3710
SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm with Magnetic Fastening Kit, Smoke Alarm with Photoelectric Sensor and Low Battery Warning Function for House, ETL-9th Listed, GS509A, 5 Pack
5794.4 out of 5 Stars. 579 reviews
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $28.99
Sponsored
From$2899
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
334.5 out of 5 Stars. 33 reviews
100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $19.88
100+ bought since yesterday
Sponsored
From$1988
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
8654.5 out of 5 Stars. 865 reviews
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $44.44
Sponsored
From$4444
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
2413.7 out of 5 Stars. 241 reviews
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
Mitco N27-16M: Complete Combustion Smoke Test Kit $135.24
$13524
current price $135.24Mitco N27-16M: Complete Combustion Smoke Test Kit
Leak Detector,Leak Natural Tester Combustible Test Meter Sound Alarm Function Handheld Combustible Leak Tester Portable Combustible Meter Sniffer Test Portable Combustible Test Multicolor $102.99
$10299
current price $102.99Leak Detector,Leak Natural Tester Combustible Test Meter Sound Alarm Function Handheld Combustible Leak Tester Portable Combustible Meter Sniffer Test Portable Combustible Test Multicolor
VORALYN 2026 New Universal Lcd Digital Battery Tester Checker Aa,Aaa,Button 9V 1.5V Cells for Remotes,Toys,Flashlights,Clocks,Electronics,Smoke Detectors,Home Devices $8.91
$891
current price $8.91VORALYN 2026 New Universal Lcd Digital Battery Tester Checker Aa,Aaa,Button 9V 1.5V Cells for Remotes,Toys,Flashlights,Clocks,Electronics,Smoke Detectors,Home Devices
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84
Sponsored
From$3484
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
1693.8 out of 5 Stars. 169 reviews
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack From $65.00
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From$6500
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack
1533.6 out of 5 Stars. 153 reviews
100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88
100+ bought since yesterday
Sponsored
From$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
3154.5 out of 5 Stars. 315 reviews
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack From $57.00
Sponsored
From$5700
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack
784.5 out of 5 Stars. 78 reviews
Kidde 20SDR Battery-Operated Photoelectric Smoke Detector From $29.21
Sponsored
From$2921
Kidde 20SDR Battery-Operated Photoelectric Smoke Detector
1314.5 out of 5 Stars. 131 reviews
50+ bought since yesterday Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch From $29.21
50+ bought since yesterday
Sponsored
From$2921
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
3974.1 out of 5 Stars. 397 reviews
Other options to consider(57)
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 $11.17
$1117
current price $11.17M 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
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, 8 Packs From $46.34
8 options
Available in additional 8 optionsFrom$4634
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, 8 Packs
2164.4 out of 5 Stars. 216 reviews
BIMZUC Voltage Tester Professional High Brightness Tri-Color Electrical Tester Pen with Buzzer Alarm Null Fire Wire On-Off Continuity Detection Induction Circuit Sniffer Detector 6.7 in / 17.0 cm $14.37
$1437
current price $14.37BIMZUC Voltage Tester Professional High Brightness Tri-Color Electrical Tester Pen with Buzzer Alarm Null Fire Wire On-Off Continuity Detection Induction Circuit Sniffer Detector 6.7 in / 17.0 cm
100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $19.88
100+ bought since yesterday
2 options
Available in additional 2 optionsFrom$1988
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
8654.5 out of 5 Stars. 865 reviews
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $28.99
3 options
Available in additional 3 optionsFrom$2899
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
334.5 out of 5 Stars. 33 reviews
100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88
100+ bought since yesterday
2 options
Available in additional 2 optionsFrom$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
3154.5 out of 5 Stars. 315 reviews
First Alert BRK, Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack $42.99
$4299
current price $42.99First Alert BRK, Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack
25 out of 5 Stars. 2 reviews
Riousery B16 Digital Voltage Detector 12V-300V Non-Contact Tester Sound Light Alarm Zero Fire Wire Recognition LED Flashlight LCD Display Black Red $17.17
$1717
current price $17.17Riousery B16 Digital Voltage Detector 12V-300V Non-Contact Tester Sound Light Alarm Zero Fire Wire Recognition LED Flashlight LCD Display Black Red
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL Listed, GS562A, 1 Pack From $27.17
9 options
Available in additional 9 optionsFrom$2717
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, ETL Listed, GS562A, 1 Pack
1484.4 out of 5 Stars. 148 reviews
Smoke Alarm Detector Home Fire Safety Sensor Alert
Smoke Alarm Detector Home Fire Safety Sensor Alert
534.2 out of 5 Stars. 53 reviews
First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 3-Pack $112.06
$11206
current price $112.06First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 3-Pack
24.5 out of 5 Stars. 2 reviews
Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector
Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector
494.5 out of 5 Stars. 49 reviews
50+ bought since yesterday Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch From $29.21
50+ bought since yesterday
2 options
Available in additional 2 optionsFrom$2921
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch
3974.1 out of 5 Stars. 397 reviews
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 12 Pack From $37.10
8 options
Available in additional 8 optionsFrom$3710
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 12 Pack
5794.4 out of 5 Stars. 579 reviews
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
$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
154.7 out of 5 Stars. 15 reviews
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $44.44
2 options
Available in additional 2 optionsFrom$4444
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
2413.7 out of 5 Stars. 241 reviews
20 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $120.99
From$12099
20 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
First Alert Slim Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector $46.95 Was $56.10
Now$4695
current price Now $46.95, Was $56.10$56.10
First Alert Slim Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector
344.5 out of 5 Stars. 34 reviews
Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm $15.10
$1510
current price $15.10Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm
35 out of 5 Stars. 3 reviews
Kidde 20SDR Battery-Operated Photoelectric Smoke Detector From $29.21
2 options
Available in additional 2 optionsFrom$2921
Kidde 20SDR Battery-Operated Photoelectric Smoke Detector
1314.5 out of 5 Stars. 131 reviews
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
4894.5 out of 5 Stars. 489 reviews
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
BRK Battery-Powered Ionization Smoke Detector $19.95
$1995
current price $19.95BRK Battery-Powered Ionization Smoke Detector
234.3 out of 5 Stars. 23 reviews
SITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.1 pack From $39.99
3 options
Available in additional 3 optionsFrom$3999
SITERWELL Hardwired Smoke & Carbon Monoxide Detector Combo,10 Year Battery,UL217-9th,Interconnected,Bilingual Voice Alerts,6.1in*1.65in.1 pack
144.4 out of 5 Stars. 14 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
204.4 out of 5 Stars. 20 reviews
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 $45.99
3 options
Available in additional 3 optionsFrom$4599
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
424.2 out of 5 Stars. 42 reviews
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
First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector $34.90
$3490
current price $34.90First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector
244.5 out of 5 Stars. 24 reviews
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
784.5 out of 5 Stars. 78 reviews
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
134.8 out of 5 Stars. 13 reviews
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
4424.2 out of 5 Stars. 442 reviews
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