Ionization Detectors

Uses item details. Price when purchased online

50+ bought since yesterday Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch From $65.00

Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
Sponsored
From$6500

Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch

4.4 out of 5 Stars. 319 reviews

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
Sponsored
From$3484

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

3.8 out of 5 Stars. 163 reviews

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector — Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector — Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack
Sponsored
current price $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector — Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack

5 out of 5 Stars. 9 reviews

SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack From $24.80

SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Fire Alarm,Bilingual Voice Alerts, UL217-9th Standards,1 Pack
Sponsored
From$2480

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

4.7 out of 5 Stars. 25 reviews

BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector $24.99 Was $29.00

BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
current price Now $24.99, Was $29.00

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

4.7 out of 5 Stars. 145 reviews

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $49.51

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
current price $49.51

First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization

4.2 out of 5 Stars. 124 reviews

First Alert 1046856, 10 Year Battery Ionization Smoke Alarm $24.59

First Alert 1046856, 10 Year Battery Ionization Smoke Alarm
current price $24.59

First Alert 1046856, 10 Year Battery Ionization Smoke Alarm

4.5 out of 5 Stars. 69 reviews

BRK Battery-Powered Ionization Smoke Detector $19.95

BRK Battery-Powered Ionization Smoke Detector
current price $19.95

BRK Battery-Powered Ionization Smoke Detector

4.3 out of 5 Stars. 23 reviews

First Alert PRC710, Battery-Powered Ionization Smoke Alarms $21.99

First Alert PRC710, Battery-Powered Ionization Smoke Alarms
current price $21.99

First Alert PRC710, Battery-Powered Ionization Smoke Alarms

4.6 out of 5 Stars. 27 reviews

BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm $36.99

BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm
current price $36.99

BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm

4.6 out of 5 Stars. 9 reviews

SITERWELL Photoelectric Smoke Detector, 10 Year Product Life Fire Alarm, Magnetic Mount, Low Battery Warning, UL217, GS509A , 8-Pack From $19.52

SITERWELL Photoelectric Smoke Detector, 10 Year Product Life Fire Alarm, Magnetic Mount, Low Battery Warning, UL217, GS509A , 8-Pack
Sponsored
From$1952

SITERWELL Photoelectric Smoke Detector, 10 Year Product Life Fire Alarm, Magnetic Mount, Low Battery Warning, UL217, GS509A , 8-Pack

4.4 out of 5 Stars. 560 reviews

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $35.97

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
Sponsored
From$3597

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

3.7 out of 5 Stars. 234 reviews

BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector $35.99 Was $44.00

BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector
current price Now $35.99, Was $44.00

BRK Battery-Powered Ionization Smoke and Carbon Monoxide Detector

4.9 out of 5 Stars. 7 reviews

First Alert BRK SC9120B 85-Decibel Ionization Hardwired Smoke and Electrochemical Carbon Monoxide Detector with Battery Backup $82.99

First Alert BRK SC9120B 85-Decibel Ionization Hardwired Smoke and Electrochemical Carbon Monoxide Detector with Battery Backup
current price $82.99

First Alert BRK SC9120B 85-Decibel Ionization Hardwired Smoke and Electrochemical Carbon Monoxide Detector with Battery Backup

4.6 out of 5 Stars. 345 reviews

USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels $99.99

USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels
current price $99.99

USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels

4.3 out of 5 Stars. 47 reviews

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

BRK Hard-Wired w/Battery Back-Up Ionization Smoke and Carbon Monoxide Detector

4.4 out of 5 Stars. 67 reviews

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

First Alert FG250B Battery Operated Smoke Alarm, Dual Ionization, 85 dB

4.4 out of 5 Stars. 47 reviews

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack From $57.00

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack
Sponsored
From$5700

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack

4.6 out of 5 Stars. 75 reviews

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included From $29.97

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included
Sponsored
From$2997

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

4.5 out of 5 Stars. 126 reviews

Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack From $65.00

Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack
Sponsored
From$6500

Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack

3.6 out of 5 Stars. 148 reviews

50+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88

Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
Sponsored
From$3688

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

4.5 out of 5 Stars. 281 reviews

Other options to consider

ERICKHILL EMF Meter, Rechargeable, Digital LCD, Radiation Detector with Buzzer Alarm, Blue $39.99

ERICKHILL EMF Meter, Rechargeable, Digital LCD, Radiation Detector with Buzzer Alarm, Blue
current price $39.99

ERICKHILL EMF Meter, Rechargeable, Digital LCD, Radiation Detector with Buzzer Alarm, Blue

5 out of 5 Stars. 3 reviews

Best seller Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L $89.99

Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
current price $89.99

Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L

4.3 out of 5 Stars. 116 reviews

KONTONTY Compact Radiation Detector Black for Precise Magnetic and Electric Field Monitoring

KONTONTY Compact Radiation Detector Black for Precise Magnetic and Electric Field Monitoring

KONTONTY Compact Radiation Detector Black for Precise Magnetic and Electric Field Monitoring

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

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
current price $83.99

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

4 out of 5 Stars. 1 reviews

Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L $125.00

Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
current price $125.00

Airthings Corentium Home Radon Detector 2350 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L

5 out of 5 Stars. 3 reviews

First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400 , 1046718 $55.99

First Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400 , 1046718
current price $55.99

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

1 out of 5 Stars. 1 reviews

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector  Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack
current price $69.99

Rely 7400 2-in-1 Smoke & Carbon Monoxide Detector Hardwired AC Powered with Battery Backup - RealAlerts Voice & LED Warning System - Photoelectric Smoke and CO Detector - Interconnect - 1 Pack

5 out of 5 Stars. 9 reviews

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM From $27.94

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
Available in additional 3 options
From$2794

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM

4.6 out of 5 Stars. 753 reviews

Elowen Oxygen Detector Meter Oxygen Detector Meter, Buzzer Light Alarm Handheld Excellent Repeatability O2 Detector High Accuracy Sensitivity Short Response Clear Display for Home $122.87

Elowen Oxygen Detector Meter Oxygen Detector Meter, Buzzer Light Alarm Handheld Excellent Repeatability O2 Detector High Accuracy Sensitivity Short Response Clear Display for Home
current price $122.87

Elowen Oxygen Detector Meter Oxygen Detector Meter, Buzzer Light Alarm Handheld Excellent Repeatability O2 Detector High Accuracy Sensitivity Short Response Clear Display for Home

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84

Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
Available in additional 2 options
From$3484

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

3.8 out of 5 Stars. 163 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

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

4.4 out of 5 Stars. 490 reviews

BRK Battery-Powered Electrochemical Carbon Monoxide Detector $121.84

BRK Battery-Powered Electrochemical Carbon Monoxide Detector
current price $121.84

BRK Battery-Powered Electrochemical Carbon Monoxide Detector

50+ bought since yesterday Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch From $65.00

Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
Available in additional 2 options
From$6500

Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch

4.4 out of 5 Stars. 319 reviews

Rely Essentials 6200 Plug-in Carbon Monoxide Detector, CO Alarm with Battery Backup and Digital Display, 1-Pack $39.99

Rely Essentials 6200 Plug-in Carbon Monoxide Detector, CO Alarm with Battery Backup and Digital Display, 1-Pack
current price $39.99

Rely Essentials 6200 Plug-in Carbon Monoxide Detector, CO Alarm with Battery Backup and Digital Display, 1-Pack

4.6 out of 5 Stars. 15 reviews

50+ bought since yesterday Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44

Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
current price $23.44

Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3

4.6 out of 5 Stars. 568 reviews

Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup From $51.00

Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup
Available in additional 3 options
From$5100

Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup

4 out of 5 Stars. 190 reviews

Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power From $41.97

Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power
Available in additional 2 options
From$4197

Knox Safety Battery Operated Carbon Monoxide Detector, Voice Alert & Display, 10-Year Lithium Power

4.1 out of 5 Stars. 404 reviews

100+ bought since yesterday Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47

Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
Available in additional 3 options
From$2747

Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators

4.7 out of 5 Stars. 1832 reviews

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