Detectors

Uses item details. Price when purchased online

Deal, ADT Blu Security Starter Kit, DIY Home Alarm System with Door and Window Sensors, Motion Detector, and ADT+ App, (Plan Required) $99.60 Was $249.00

Deal
ADT Blu Security Starter Kit, DIY Home Alarm System with Door and Window Sensors, Motion Detector, and ADT+ App, (Plan Required)
Sponsored
current price Now $99.60, Was $249.00

ADT Blu Security Starter Kit, DIY Home Alarm System with Door and Window Sensors, Motion Detector, and ADT+ App, (Plan Required)

4.8 out of 5 stars
4.8 out of 5 Stars. 16 reviews

Dakota Alert DCPA-4K Driveway Probe Alert Alarm Kit $259.99

Dakota Alert DCPA-4K Driveway Probe Alert Alarm Kit
Sponsored
current price $259.99

Dakota Alert DCPA-4K Driveway Probe Alert Alarm Kit

5 out of 5 stars
5 out of 5 Stars. 1 reviews

ADT Blu Glass Break Sensor, Machine Learning Detector, 25-Ft Range, Tamper Alerts, and ADT+ App Control, (Plan Required) $40.00

ADT Blu Glass Break Sensor, Machine Learning Detector, 25-Ft Range, Tamper Alerts, and ADT+ App Control, (Plan Required)
Sponsored
current price $40.00

ADT Blu Glass Break Sensor, Machine Learning Detector, 25-Ft Range, Tamper Alerts, and ADT+ App Control, (Plan Required)

Rely RealAlerts 10-Year Battery Combination Smoke and Carbon Monoxide Alarm with Voice Alerts and LED Warning, 1 Pack From $64.99

Rely RealAlerts 10-Year Battery Combination Smoke and Carbon Monoxide Alarm with Voice Alerts and LED Warning, 1 Pack
Sponsored
From$6499

Rely RealAlerts 10-Year Battery Combination Smoke and Carbon Monoxide Alarm with Voice Alerts and LED Warning, 1 Pack

4.9 out of 5 stars
4.9 out of 5 Stars. 9 reviews

Overall pick, LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $13.99

Overall pick
LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
White/1 Pack, variant on LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
White/2 Pack, variant on LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
White/3 Pack, variant on LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
White/4 Pack, variant on LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
From$1399

LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector

4.6 out of 5 stars
4.6 out of 5 Stars. 170 reviews

LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack) From $35.97

LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack)
Available in additional 3 options
From$3597

LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack)

4.4 out of 5 stars
4.4 out of 5 Stars. 39 reviews

Deal, Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $15.99 Was $31.99

Deal
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
current price Now $15.99, Was $31.99

Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse

4.4 out of 5 stars
4.4 out of 5 Stars. 317 reviews

X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR From $79.99

X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR
White, variant on X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR
XR0A, variant on X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR
XR0B, variant on X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR
From$7999

X-Sense Radon Gas Detector Monitor for Home, Continuous & Real-Time Testing with Easy-to-Read LCD Display, No Installation or Lab Fees, XR0A-SR

4.6 out of 5 stars
4.6 out of 5 Stars. 99 reviews

Best seller, Kidde COB AA Battery-Powered, Electrochemical Carbon Monoxide Alarm $26.97

Best seller
Kidde COB AA Battery-Powered, Electrochemical Carbon Monoxide Alarm
current price $26.97

Kidde COB AA Battery-Powered, Electrochemical Carbon Monoxide Alarm

4.9 out of 5 stars
4.9 out of 5 Stars. 50 reviews

PANGAEA Digital RV Propane Gas Detector with 85dB Loud Alarm, DC 12V, for Trailer, Motorhome, Motorcoach (Surface Mount - White) From $34.90

PANGAEA Digital RV Propane Gas Detector with 85dB Loud Alarm, DC 12V, for Trailer, Motorhome, Motorcoach (Surface Mount - White)
Available in additional 3 options
From$3490

PANGAEA Digital RV Propane Gas Detector with 85dB Loud Alarm, DC 12V, for Trailer, Motorhome, Motorcoach (Surface Mount - White)

4.5 out of 5 stars
4.5 out of 5 Stars. 19 reviews

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC01 From $42.99

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC01
Sponsored
From$4299

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, 5 PACK, SC01

4.5 out of 5 stars
4.5 out of 5 Stars. 579 reviews

Power Failure Alarm for Freezer, Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators Freezers & Sewage $21.49 Was $29.99

Power Failure Alarm for Freezer, Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators Freezers & Sewage
Sponsored
current price Now $21.49, Was $29.99

Power Failure Alarm for Freezer, Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators Freezers & Sewage

3.7 out of 5 stars
3.7 out of 5 Stars. 3 reviews

X-Sense Smoke and Carbon Monoxide Alarm Combo, 10-Year Battery Powered Detector, UL 217 & UL 2034 Certified, SC07, 1-Pack From $42.99

X-Sense Smoke and Carbon Monoxide Alarm Combo, 10-Year Battery Powered Detector, UL 217 & UL 2034 Certified, SC07, 1-Pack
Available in additional 2 options
From$4299

X-Sense Smoke and Carbon Monoxide Alarm Combo, 10-Year Battery Powered Detector, UL 217 & UL 2034 Certified, SC07, 1-Pack

4.5 out of 5 stars
4.5 out of 5 Stars. 513 reviews

In 50+ people's carts, Stud Finder Wall Scanner, 5 in 1, Electronic Wall Stud Detector with Smart Sensor, High-Definition LCD Display and Audio Alarm, for the Center and Edge of Metal, AC Wire, Joists, Pipes, Blue

In 50+ people's carts
Stud Finder Wall Scanner, 5 in 1, Electronic Wall Stud Detector with Smart Sensor, High-Definition LCD Display and Audio Alarm, for the Center and Edge of Metal, AC Wire, Joists, Pipes, Blue
Blue, variant on Stud Finder Wall Scanner, 5 in 1, Electronic Wall Stud Detector with Smart Sensor, High-Definition LCD Display and Audio Alarm, for the Center and Edge of Metal, AC Wire, Joists, Pipes, Blue
Orange, variant on Stud Finder Wall Scanner, 5 in 1, Electronic Wall Stud Detector with Smart Sensor, High-Definition LCD Display and Audio Alarm, for the Center and Edge of Metal, AC Wire, Joists, Pipes, Blue

Stud Finder Wall Scanner, 5 in 1, Electronic Wall Stud Detector with Smart Sensor, High-Definition LCD Display and Audio Alarm, for the Center and Edge of Metal, AC Wire, Joists, Pipes, Blue

5 out of 5 stars
5 out of 5 Stars. 17 reviews

Best seller, X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK From $22.99

Best seller
X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK
Available in additional 2 options
From$2299

X Sense 10 Year Battery Smoke Detector, Photoelectric Sensor, ETL Listed, Battery Powered Smoke Alarm, SD2J0AX, 1 PACK

4.5 out of 5 stars
4.5 out of 5 Stars. 888 reviews

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, SC01, 1-PACK From $42.99

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, SC01, 1-PACK
Available in additional 2 options
From$4299

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Sensor with Digital Display, Standalone Alarm, Certified to Latest UL Standards, SC01, 1-PACK

4.5 out of 5 stars
4.5 out of 5 Stars. 579 reviews

Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack

Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack
Black, variant on Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack
White, variant on Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack

Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack

4.3 out of 5 stars
4.3 out of 5 Stars. 52 reviews

Ivory Home Sense CO Detector, Ivory Home Sense 6-in-1 Indoor Environmental Monitor with Color Display, Sound Notification, Temperature & Humidity Tracking, Type-C Power, Magnetic Mount for Home From $40.96

Ivory Home Sense CO Detector, Ivory Home Sense 6-in-1 Indoor Environmental Monitor with Color Display, Sound Notification, Temperature & Humidity Tracking, Type-C Power, Magnetic Mount for Home
Black, variant on Ivory Home Sense CO Detector, Ivory Home Sense 6-in-1 Indoor Environmental Monitor with Color Display, Sound Notification, Temperature & Humidity Tracking, Type-C Power, Magnetic Mount for Home
White, variant on Ivory Home Sense CO Detector, Ivory Home Sense 6-in-1 Indoor Environmental Monitor with Color Display, Sound Notification, Temperature & Humidity Tracking, Type-C Power, Magnetic Mount for Home
From$4096

Ivory Home Sense CO Detector, Ivory Home Sense 6-in-1 Indoor Environmental Monitor with Color Display, Sound Notification, Temperature & Humidity Tracking, Type-C Power, Magnetic Mount for Home

Digital Radon Detector with 10-Year Sensor HD LCD Desktop Monitor2-3 Year Battery (6H Charge) Real-Time Readings for Home & Office Safety $45.99

Digital Radon Detector with 10-Year Sensor HD LCD Desktop Monitor2-3 Year Battery (6H Charge) Real-Time Readings for Home & Office Safety
current price $45.99

Digital Radon Detector with 10-Year Sensor HD LCD Desktop Monitor2-3 Year Battery (6H Charge) Real-Time Readings for Home & Office Safety

5 out of 5 stars
5 out of 5 Stars. 1 reviews

6-in-1 Digital Air Quality Monitor for Kitchen, Portable Temperature and Humidity Meter with Multi-Gas Tester, HD Color Display, Compact Indoor Climate Detector for Home, RV Campers From $22.99

6-in-1 Digital Air Quality Monitor for Kitchen, Portable Temperature and Humidity Meter with Multi-Gas Tester, HD Color Display, Compact Indoor Climate Detector for Home, RV Campers
Black, variant on 6-in-1 Digital Air Quality Monitor for Kitchen, Portable Temperature and Humidity Meter with Multi-Gas Tester, HD Color Display, Compact Indoor Climate Detector for Home, RV Campers
White, variant on 6-in-1 Digital Air Quality Monitor for Kitchen, Portable Temperature and Humidity Meter with Multi-Gas Tester, HD Color Display, Compact Indoor Climate Detector for Home, RV Campers
From$2299

6-in-1 Digital Air Quality Monitor for Kitchen, Portable Temperature and Humidity Meter with Multi-Gas Tester, HD Color Display, Compact Indoor Climate Detector for Home, RV Campers

1 out of 5 stars
1 out of 5 Stars. 1 reviews

X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack From $42.99

X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack
Sponsored
From$4299

X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack

4.5 out of 5 stars
4.5 out of 5 Stars. 513 reviews

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 3 PACK, SC06 From $42.99

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 3 PACK, SC06
Sponsored
From$4299

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 3 PACK, SC06

4.6 out of 5 stars
4.6 out of 5 Stars. 706 reviews

Deal, Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White Was $125.59

Deal
Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White
Black, variant on Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White
White, variant on Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White

Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White

4.5 out of 5 stars
4.5 out of 5 Stars. 25 reviews

50+ bought since yesterday, Kidde Carbon Monoxide Detector, Plug-In with AA Battery Backup, Rotating Plug, 85 dB Alarm, COP From $34.97

50+ bought since yesterday
Kidde Carbon Monoxide Detector, Plug-In with AA Battery Backup, Rotating Plug, 85 dB Alarm, COP
Available in additional 4 options
From$3497

Kidde Carbon Monoxide Detector, Plug-In with AA Battery Backup, Rotating Plug, 85 dB Alarm, COP

4.9 out of 5 stars
4.9 out of 5 Stars. 48 reviews

SafetySiren Pro4 Series (4th Gen) P4SU1 - Home Radon Gas Detector - USA Version pCi/L $149.00

SafetySiren Pro4 Series (4th Gen) P4SU1 - Home Radon Gas Detector - USA Version pCi/L
current price $149.00

SafetySiren Pro4 Series (4th Gen) P4SU1 - Home Radon Gas Detector - USA Version pCi/L

4.6 out of 5 stars
4.6 out of 5 Stars. 9 reviews

Best seller, 2-in-1 RV Propane Gas Detector,Replace The Old RV Gas Detector #31011,100dB Loud Alarm,12V DC for Motorhome Travel Trailer, Motor Coach $39.98

Best seller
2-in-1 RV Propane Gas Detector,Replace The Old RV Gas Detector #31011,100dB Loud Alarm,12V DC for Motorhome Travel Trailer, Motor Coach
current price $39.98

2-in-1 RV Propane Gas Detector,Replace The Old RV Gas Detector #31011,100dB Loud Alarm,12V DC for Motorhome Travel Trailer, Motor Coach

5 out of 5 stars
5 out of 5 Stars. 3 reviews

Deal, Topvico Water Leak Detectors for Home, Basements, Sump Pump, Under Sink, Moisture Alarm Sensor, 120dB Battery Operated Flood Alert, 3-Pack (95 inch Cable) $13.51 Was $15.89

Deal
Topvico Water Leak Detectors for Home, Basements, Sump Pump, Under Sink, Moisture Alarm Sensor, 120dB Battery Operated Flood Alert, 3-Pack (95 inch Cable)
current price Now $13.51, Was $15.89

Topvico Water Leak Detectors for Home, Basements, Sump Pump, Under Sink, Moisture Alarm Sensor, 120dB Battery Operated Flood Alert, 3-Pack (95 inch Cable)

4.9 out of 5 stars
4.9 out of 5 Stars. 8 reviews

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation From $22.94

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
1 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
2 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
3 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
From$2294

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation

Clearance, Fixdono High Sensitivity Natural Gas Detector, Plug-in Gas Monitor for Home Safety $16.99 Was $29.99

Clearance
Fixdono High Sensitivity Natural Gas Detector, Plug-in Gas Monitor for Home Safety
current price Now $16.99, Was $29.99

Fixdono High Sensitivity Natural Gas Detector, Plug-in Gas Monitor for Home Safety

4.3 out of 5 stars
4.3 out of 5 Stars. 84 reviews

Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included) $39.99

Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)
current price $39.99

Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)

4 out of 5 stars
4 out of 5 Stars. 20 reviews

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
4.4 out of 5 Stars. 401 reviews

Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts From $49.96

Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts
Sponsored
From$4996

Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts

4.6 out of 5 stars
4.6 out of 5 Stars. 442 reviews

LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector $15.57

LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
current price $15.57

LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector

4.7 out of 5 stars
4.7 out of 5 Stars. 23 reviews

Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen $16.51

Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen
current price $16.51

Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen

4.4 out of 5 stars
4.4 out of 5 Stars. 168 reviews

Fixdono Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane in Kitchen, Home, Camper $18.49 Was $31.99

Fixdono Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane in Kitchen, Home, Camper
current price Now $18.49, Was $31.99

Fixdono Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane in Kitchen, Home, Camper

4.5 out of 5 stars
4.5 out of 5 Stars. 178 reviews

6-in-1 Combustible Gas Detector,6 in 1 CO Smoke Combustible Alarm,Plug-in Portable Temperature Humidity Meter with LCD Display for Home,Kitchen,RV,Trave

6-in-1 Combustible Gas Detector,6 in 1 CO Smoke Combustible Alarm,Plug-in Portable Temperature Humidity Meter with LCD Display for Home,Kitchen,RV,Trave
Black, variant on 6-in-1 Combustible Gas Detector,6 in 1 CO Smoke Combustible Alarm,Plug-in Portable Temperature Humidity Meter with LCD Display for Home,Kitchen,RV,Trave
White, variant on 6-in-1 Combustible Gas Detector,6 in 1 CO Smoke Combustible Alarm,Plug-in Portable Temperature Humidity Meter with LCD Display for Home,Kitchen,RV,Trave

6-in-1 Combustible Gas Detector,6 in 1 CO Smoke Combustible Alarm,Plug-in Portable Temperature Humidity Meter with LCD Display for Home,Kitchen,RV,Trave

5 out of 5 stars
5 out of 5 Stars. 1 reviews

(2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $18.97

(2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
Fire Safety Bundle, variant on (2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
Smoke + Flame out Spray, variant on (2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
Smoke + Spare Batteries, variant on (2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
Smoke Detector, variant on (2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
From$1897

(2 pack) (2 pack) Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included

4.5 out of 5 stars
4.5 out of 5 Stars. 1071 reviews

Smoke and Carbon Monoxide Detector Combo - CO & Smoke Alarm System with Hush Function, Self-Test Button, 10-Year Built-in Battery - Easy to Install, for Home & Office From $28.53

Smoke and Carbon Monoxide Detector Combo - CO & Smoke Alarm System with Hush Function, Self-Test Button, 10-Year Built-in Battery - Easy to Install, for Home & Office
Available in additional 4 options
From$2853

Smoke and Carbon Monoxide Detector Combo - CO & Smoke Alarm System with Hush Function, Self-Test Button, 10-Year Built-in Battery - Easy to Install, for Home & Office

4.5 out of 5 stars
4.5 out of 5 Stars. 69 reviews

First Alert SMI100 Battery-Operated Smoke Alarm with Ionization $16.99 $28.80/ea

First Alert SMI100 Battery-Operated Smoke Alarm with Ionization
current price $16.99
$28.80/ea

First Alert SMI100 Battery-Operated Smoke Alarm with Ionization

4.6 out of 5 stars
4.6 out of 5 Stars. 262 reviews

GasKnight PRO Natural Gas & Propane Leak Detector - Propane Detector Battery Operated - Portable Detection Combustible Gas Sniffer for LP, Methane Leak Detectors for Home and RV

GasKnight PRO Natural Gas & Propane Leak Detector - Propane Detector Battery Operated - Portable Detection Combustible Gas Sniffer for LP, Methane Leak Detectors for Home and RV

GasKnight PRO Natural Gas & Propane Leak Detector - Propane Detector Battery Operated - Portable Detection Combustible Gas Sniffer for LP, Methane Leak Detectors for Home and RV

4.5 out of 5 stars
4.5 out of 5 Stars. 78 reviews

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 1 PACK, SC06 From $42.99

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 1 PACK, SC06
Available in additional 2 options
From$4299

X-Sense Smoke and Carbon Monoxide Detector Combo, 10-Year Battery, Standalone Alarm, Certified to Latest UL Standards, 1 PACK, SC06

4.6 out of 5 stars
4.6 out of 5 Stars. 706 reviews

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $39.97

Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
Available in additional 4 options
From$3997

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

3.8 out of 5 stars
3.8 out of 5 Stars. 284 reviews

6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black From $21.39

6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
Black, variant on 6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
Black A, variant on 6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
Black B, variant on 6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
From$2139

6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black

3.8 out of 5 stars
3.8 out of 5 Stars. 8 reviews

Ludlz Infrared Beam Detector, 10m IR Beam Sensor Home Outdoor Security Alarm Human Body Detector Perimeter Protection $15.46

Ludlz Infrared Beam Detector, 10m IR Beam Sensor Home Outdoor Security Alarm Human Body Detector Perimeter Protection
current price $15.46

Ludlz Infrared Beam Detector, 10m IR Beam Sensor Home Outdoor Security Alarm Human Body Detector Perimeter Protection

Indoor Motion Sensor Alarm, 125dB Wireless Infrared Security Detector with 328ft Remote Control for Home, Garage, Van $25.99

Indoor Motion Sensor Alarm, 125dB Wireless Infrared Security Detector with 328ft Remote Control for Home, Garage, Van
current price $25.99

Indoor Motion Sensor Alarm, 125dB Wireless Infrared Security Detector with 328ft Remote Control for Home, Garage, Van

CAZONER Propane Detector & Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen From $27.97

CAZONER Propane Detector &  Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
Black, variant on CAZONER Propane Detector &  Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
Blue, variant on CAZONER Propane Detector &  Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
White, variant on CAZONER Propane Detector &  Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
From$2797

CAZONER Propane Detector & Natural Gas Detector, 10-Year Lifespan, Gas Leak Alarm for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen

4.4 out of 5 stars
4.4 out of 5 Stars. 9 reviews

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

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Portable Carbon Monoxide Detector – Handheld CO Alarm with Electrochemical Sensor, 85dB Audible Alert and LCD Display, Battery Operated Safety Device for Home, Travel, Camping and RV Use From $10.01

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FAQ

What does a home detector actually do?

Home detectors are designed to alert you to potential dangers like smoke, carbon monoxide, or gas leaks. They use sensors to monitor the air and sound an alarm if they detect unsafe levels. This early warning can give you valuable time to react and help keep your household safe. Many modern detectors also feature digital displays, long-life batteries, or wireless connectivity for added convenience. It's important to install detectors in key areas like bedrooms, hallways, and kitchens for the best coverage.

Where should I put smoke and carbon monoxide detectors?

Placement is key for effective protection.

  • Install smoke detectors inside each bedroom, outside sleeping areas, and on every level of your home, including the basement.
  • Carbon monoxide detectors should be placed near sleeping areas and on each floor.
  • Avoid putting detectors too close to windows, doors, or vents, as drafts can affect their performance.
Always follow the manufacturer's instructions for specific placement tips, and test your alarms regularly to make sure they're working properly.

How do I know if my detector needs new batteries?

Most detectors will beep or chirp when their batteries are running low. Some models have a digital display that shows battery status or a warning light. It's a good idea to test your detectors monthly by pressing the test button. Even if you don't hear a warning, consider replacing batteries at least once a year, or as recommended by the manufacturer, to keep your alarms reliable.

Can I use a detector in my RV or camper?

Yes, many detectors are suitable for use in RVs, campers, or other portable spaces. Look for models that are battery-operated or plug-in and designed for smaller areas. Make sure to follow installation guidelines specific to RVs, as ventilation and space can affect performance. Regularly test your alarms and replace batteries as needed, especially before trips, to help ensure your safety on the road.

How do I test if my detector is working?

Testing your detector is simple and important.

  1. Press and hold the test button on the unit until you hear the alarm sound.
  2. If the alarm doesn't sound, check the batteries or power source and try again.
  3. For models with a digital display, look for any error messages or warning lights.
It's best to test your detectors once a month. If you ever have concerns about a detector's performance, consult the user manual or reach out to the manufacturer for guidance.

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