Ionization Detectors(15)
Uses item details. Price when purchased online
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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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
864.6 out of 5 Stars. 86 reviews
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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
First Alert 1046856, 10 Year Battery Ionization Smoke Alarm $24.59 Was $28.00

Now$2459
current price Now $24.59, Was $28.00$28.00
First Alert 1046856, 10 Year Battery Ionization Smoke Alarm
444.5 out of 5 Stars. 44 reviews
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First Alert PRC710, Battery-Powered Ionization Smoke Alarms $21.99

$2199
current price $21.99First Alert PRC710, Battery-Powered Ionization Smoke Alarms
244.6 out of 5 Stars. 24 reviews
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Reduced price BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector $35.25 Was $44.00

Now$3525
current price Now $35.25, Was $44.00$44.00
BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector
35 out of 5 Stars. 3 reviews
BRK Battery-Powered Ionization Smoke Detector $19.95

$1995
current price $19.95BRK Battery-Powered Ionization Smoke Detector
104.2 out of 5 Stars. 10 reviews
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First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $42.99 Was $52.70

Now$4299
current price Now $42.99, Was $52.70$52.70
First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
1144.2 out of 5 Stars. 114 reviews
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BRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector Was $64.00

BRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector
614.4 out of 5 Stars. 61 reviews
First Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization $46.47

$4647
current price $46.47First Alert SMICO100 Battery-Operated 2-in-1 Smoke and CO Alarm, Ionization
574.2 out of 5 Stars. 57 reviews
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Ademco 5050065 First Alert 10 Year Hard-Wired with Battery Back-Up Ionization Smoke & Carbon Monoxide Detector $68.99

$6899
current price $68.99Ademco 5050065 First Alert 10 Year Hard-Wired with Battery Back-Up Ionization Smoke & Carbon Monoxide Detector
BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm $21.99

$2199
current price $21.99BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm
35 out of 5 Stars. 3 reviews
Kidde Worry-Free Battery-Powered Electrochemical/Ionization/Photoelectric Smoke and Carbon Monoxide Detector $51.00

$5100
current price $51.00Kidde Worry-Free Battery-Powered Electrochemical/Ionization/Photoelectric Smoke and Carbon Monoxide Detector
1451.3 out of 5 Stars. 145 reviews
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USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels $99.99

$9999
current price $99.99USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels
474.3 out of 5 Stars. 47 reviews
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First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White

First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White
414.4 out of 5 Stars. 41 reviews
Other options to consider(45)
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
824.5 out of 5 Stars. 82 reviews
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Clarifion - Negative Ion Generator with Highest Output (6 Units) Filterless Mobile Ionizer, Plug in, Eliminates: Smoke, Viruses, Allergens & More $145.00

$14500
current price $145.00Clarifion - Negative Ion Generator with Highest Output (6 Units) Filterless Mobile Ionizer, Plug in, Eliminates: Smoke, Viruses, Allergens & More
1564.1 out of 5 Stars. 156 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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NKBIRD Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Monitoring, US Version-Pci/L,Black
NKBIRD Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Monitoring, US Version-Pci/L,Black
184.4 out of 5 Stars. 18 reviews
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84

2 options
Available in additional 2 optionsFrom$3484
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
1453.7 out of 5 Stars. 145 reviews
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INKBIRD INK-RD3 Smart Home Radon Detector, Alpha Spectrometer Sensor, Radon Level Indicator, 3 AAA Batteries Powered, Long-term and Short-term monitoring $97.98 Was $159.90

Now$9798
current price Now $97.98, Was $159.90$159.90
INKBIRD INK-RD3 Smart Home Radon Detector, Alpha Spectrometer Sensor, Radon Level Indicator, 3 AAA Batteries Powered, Long-term and Short-term monitoring
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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
1014.3 out of 5 Stars. 101 reviews
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Best seller Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L $104.98

$10498
current price $104.98Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
994.3 out of 5 Stars. 99 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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100+ bought since yesterday Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44

$2344
current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
4124.6 out of 5 Stars. 412 reviews
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Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up $27.97

$2797
current price $27.97Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up
15 out of 5 Stars. 1 reviews
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Airthings Wave Radon Battery Operated Smart Radon Detector $124.74 Was $159.99

Now$12474
current price Now $124.74, Was $159.99$159.99
Airthings Wave Radon Battery Operated Smart Radon Detector
614.3 out of 5 Stars. 61 reviews
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Universal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup $44.97

$4497
current price $44.97Universal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup
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100+ bought since yesterday Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM From $27.94

3 options
Available in additional 3 optionsFrom$2794
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
5834.6 out of 5 Stars. 583 reviews
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Radon Detector Meter, Rechargeable Color LCD Display, 2Bq-20kBq/m $136.29

$13629
current price $136.29Radon Detector Meter, Rechargeable Color LCD Display, 2Bq-20kBq/m
VEVOR Home Radon Detector, 2Bqto20kBq/m, HD Color Screen for Real-time Display, Short-Term & Long-Term Monitoring, Portable with LCD Screen, Multiple Detection Periods Support, Battery Powered $100.99

$10099
current price $100.99VEVOR Home Radon Detector, 2Bqto20kBq/m, HD Color Screen for Real-time Display, Short-Term & Long-Term Monitoring, Portable with LCD Screen, Multiple Detection Periods Support, Battery Powered
12 out of 5 Stars. 1 reviews
100+ bought since yesterday Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47

3 options
Available in additional 3 optionsFrom$2747
Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
15544.7 out of 5 Stars. 1554 reviews
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iDiskk Plug-in Ionizer, Filterless Mobile Portable, Negative Ion Generator Eliminates: Smoke, Allergens & More for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 3-Pack White From $33.99
From$3399
iDiskk Plug-in Ionizer, Filterless Mobile Portable, Negative Ion Generator Eliminates: Smoke, Allergens & More for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 3-Pack White
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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Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5

3 options
Available in additional 3 optionsKidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5
7284.7 out of 5 Stars. 728 reviews
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Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup From $51.00

3 options
Available in additional 3 optionsFrom$5100
Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup
1894 out of 5 Stars. 189 reviews
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iDiskk Home Mini Plug-in Ionizer, Filterless Mobile Portable, Negative Ionizer Generator Eliminates: Smoke, Allergens & More for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 3-Pack White $29.99

$2999
current price $29.99iDiskk Home Mini Plug-in Ionizer, Filterless Mobile Portable, Negative Ionizer Generator Eliminates: Smoke, Allergens & More for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 3-Pack White
KFFKFF Portable Radon Detector with HD Color Display, Measures 2Bq to 20kBq/m, Real-Time and Long-Term Monitoring, LCD Screen, Battery Operated, Supports Multiple Detection Durations $99.99

$9999
current price $99.99KFFKFF Portable Radon Detector with HD Color Display, Measures 2Bq to 20kBq/m, Real-Time and Long-Term Monitoring, LCD Screen, Battery Operated, Supports Multiple Detection Durations
Kidde Battery-Powered Electrochemical Carbon Monoxide Detector From $44.44

2 options
Available in additional 2 optionsFrom$4444
Kidde Battery-Powered Electrochemical Carbon Monoxide Detector
554.2 out of 5 Stars. 55 reviews
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iDiskk Mini Plug-in Ionizer, Filterless Portable Negative Ion Generator for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 6-Pack White

iDiskk Mini Plug-in Ionizer, Filterless Portable Negative Ion Generator for Pet Room, Bedroom, Kitchen & Toilet 280 Sq ft, 6-Pack White
MSA Altair Single-Gas Detectors, Hydrogen Sulfide (H2S)

MSA Altair Single-Gas Detectors, Hydrogen Sulfide (H2S)
VEVOR Radon Detector for Home, 3.3Bq to 37kBq/m, Radon Meter, Portable Battery Powered Radon & Air Quality Monitor, Color Display,Long-Term Radon Concentration Monitoring,Rechargeable or Wired Use $83.99

$8399
current price $83.99VEVOR Radon Detector for Home, 3.3Bq to 37kBq/m, Radon Meter, Portable Battery Powered Radon & Air Quality Monitor, Color Display,Long-Term Radon Concentration Monitoring,Rechargeable or Wired Use
KFFKFF Home Radon Detector, 3.3Bq to 37kBq/m, Battery Powered Radon & Air Quality Monitor, Color Screen, Extended Radon Level Tracking, Rechargeable or Wired Option $95.99
$9599
current price $95.99KFFKFF Home Radon Detector, 3.3Bq to 37kBq/m, Battery Powered Radon & Air Quality Monitor, Color Screen, Extended Radon Level Tracking, Rechargeable or Wired Option
25 out of 5 Stars. 2 reviews
Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power From $41.97

2 options
Available in additional 2 optionsFrom$4197
Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power
4014.1 out of 5 Stars. 401 reviews
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BRK Battery-Powered Electrochemical Carbon Monoxide Detector $121.84

$12184
current price $121.84BRK Battery-Powered Electrochemical Carbon Monoxide Detector
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First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector $74.97

$7497
current price $74.97First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector
184.7 out of 5 Stars. 18 reviews
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NukAlert Radiation Detector Monitor & Alarm $169.99

$16999
current price $169.99NukAlert Radiation Detector Monitor & Alarm
Rely Essentials Battery Operated Combination Smoke & Carbon Monoxide Detector with Voice Alerts $52.99

$5299
current price $52.99Rely Essentials Battery Operated Combination Smoke & Carbon Monoxide Detector with Voice Alerts
124.8 out of 5 Stars. 12 reviews
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Detector Handheld EMF Meter Portable Electromagnetic Radiation Detector Household Laboratory Hospital Digital Electric Field Detector Multi-functional Radioactive Detector

Detector Handheld EMF Meter Portable Electromagnetic Radiation Detector Household Laboratory Hospital Digital Electric Field Detector Multi-functional Radioactive Detector
RadEnergy EMF Meter Radiation Detector Digital EMF Reader & Blocker with 5-LED Display Portable Magnetic Field Counter for Home, Office & Electronics $49.99

$4999
current price $49.99RadEnergy EMF Meter Radiation Detector Digital EMF Reader & Blocker with 5-LED Display Portable Magnetic Field Counter for Home, Office & Electronics
First Alert CO5120BN White Digital Display Hardwired Battery, Electrochemical Carbon Monoxide Alarm $41.99

$4199
current price $41.99First Alert CO5120BN White Digital Display Hardwired Battery, Electrochemical Carbon Monoxide Alarm
54.8 out of 5 Stars. 5 reviews
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WT3121 RZ EMF Meter Radiation Detector Tester Rechargeable Portable Counter e Computer Emission Electromagnetic Field Test ,Precise Measurement $49.88

$4988
current price $49.88WT3121 RZ EMF Meter Radiation Detector Tester Rechargeable Portable Counter e Computer Emission Electromagnetic Field Test ,Precise Measurement
Radiation Alert Analog Radiation Detector 4EC $850.78 $850.78/1

$85078
current price $850.78$850.78/1
Radiation Alert Analog Radiation Detector 4EC
Electromagnetic Field Radiation Detector Tester Meter Rechargeable Handheld-Portable Counter Emission Dosimeter-Computer

Electromagnetic Field Radiation Detector Tester Meter Rechargeable Handheld-Portable Counter Emission Dosimeter-Computer
AS1392 Nuclear Radiation Detector LCD EMF Meter Electromagnetic Field Radiation Dosimeter Tester ir Counter ,Precise Measurement $69.10

$6910
current price $69.10AS1392 Nuclear Radiation Detector LCD EMF Meter Electromagnetic Field Radiation Dosimeter Tester ir Counter ,Precise Measurement
Electromagnetic Field Radiation Detector,Tester Emf Counter Emission Dosimeter Computer Electric Field Magnetic Field ,Clear Data From $58.25
From$5825
Electromagnetic Field Radiation Detector,Tester Emf Counter Emission Dosimeter Computer Electric Field Magnetic Field ,Clear Data
First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400 , 1046718 $55.99

$5599
current price $55.99First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400 , 1046718
11 out of 5 Stars. 1 reviews
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BRK Electronics HC-7020BSL Hardwired Photoelectric T3 Smoke Alarm and LED Strobe

BRK Electronics HC-7020BSL Hardwired Photoelectric T3 Smoke Alarm and LED Strobe
First Alert BRK SC9120B (2 pack) Smoke & Carbon Monoxide Detector w/ Batt Backup

First Alert BRK SC9120B (2 pack) Smoke & Carbon Monoxide Detector w/ Batt Backup
544.9 out of 5 Stars. 54 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
4794.5 out of 5 Stars. 479 reviews
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