Best Toptes Gas Alarms in 2026

Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide

85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event

Battery operated to provide reliable detection, even during power outages; two AA batteries included

UL Certified with a 10-year limited warranty on alarm

Product 1: Easy to read digital display - allows for easy viewing of carbon monoxide levels

Product 2: Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire

Product 2: Protects during a power failure - smoke alarm operates on one, 9-volt battery in the back of the unit

Product 2: Whole home family protection - place 1 fire detector on each level of your home & in your bedroom

Product 2: Test-Hush Feature - silences the unit for approximately 7 minutes

Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide

85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event

Battery operated to provide reliable detection, even during power outages; two AA batteries included

UL Certified with a 10-year limited warranty on alarm

Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide

85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event

Battery operated to provide reliable detection, even during power outages; two AA batteries included

UL Certified with a 10-year limited warranty on alarm

Test-Hush Feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling

UL Certified, 10-year limited warranty

Loud pulsing alarm that will sound to alert you to a potential problem

Low battery warning feature indicates when the battery needs replacement

UL Certified, 5-year Limited Warranty

Two alarms in one detects carbon monoxide and explosive gas

Three convenient mounting options

Digital display and peak level button displays the peak CO level recorded by the alarm since it was last reset

Battery backup 9 volt battery included

Kidde’s carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL), an independent facility that tests products for compliance with widely-accepted safety standards

Photoelectric smoke detector senses visible fire particles and electrochemical CO detector provides accurate readings

UL Certified, 10-year limited warranty

Will interconnect with up to 24 other devices including smoke, CO and heat alarms

Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam

Interconnection capability: allows you to connect up to 24 Kidde smoke, heat, or CO alarms, with the possibly it interconnect 6 strobe lights or relay modules

The unit will chirp at the end of the alarm life, indicating that the alarm is in need of replacement

UL Certified, 10-year limited manufacturer warranty

Ionization sensing technology - battery-powered smoke detector senses invisible fire particles and sounds an 85 decibel alarm

Test/Hush Feature - silences the unit for approximately 7 minutes

UL Certified, 3-year limited warranty

Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages

Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam

The alarm will automatically activate when it is attached to the mounting bracket, there are no pull tabs, no switches, everything is automatic

At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement

UL Certified with a 10-year limited warranty on alarm

An 85-decibel alarm sounds & a red LED indicates the smoke detector is sensing smoke or fire

Tamper-resistant technology deters removal of the unit or battery

Replacement Alert indicates when the smoke alarm needs to be replaced

Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam

UL Certified, 10-year limited manufacturer warranty

Test-Hush Feature - silences the unit for approximately 9 minutes

UL Certified, 10-year limited warranty

Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages

Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam

The alarm will automatically activate when it is attached to the mounting bracket, there are no pull tabs, no switches, everything is automatic

At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement

UL Certified with a 10-year limited warranty on alarm

Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages

Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam

The alarm will automatically activate when it is attached to the mounting bracket, there are no pull tabs, no switches, everything is automatic

At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement

UL Certified with a 10-year limited warranty on alarm

85-db alarm & voice warnings – “Fire” or “Warning: Carbon Monoxide” so you know why the smoke & carbon monoxide detector is sounding

Interconnect alarms – allows you to connect up to 24 Kidde devices of this type, giving you trusted detection throughout your home

UL Certified, 10-year limited warranty

Pack of 6

Operates on a 10-year lithium battery, eliminating the need for battery replacement, while providing reliable detection during a power failure

Test-Hush Button makes testing the detector or silencing false alarms easy (false alarms may occur from routine cooking, shower steam, dust or humidity)

Interconnection capability: allows you to connect up to 24 Kidde alarms of this type, providing trusted detection throughout your home

UL Certified, 10-year limited manufacturer warranty

Operates on a 10-year lithium battery, eliminating the need for battery replacement, while providing reliable detection during a power failure

Combination fire alarm automatically activates when it is attached to the mounting bracket

Test-Hush Button makes testing the detector or silencing false alarms easy (false alarms may occur from routine cooking, shower steam, dust or humidity)

UL Certified, 10-year limited manufacturer warranty

Low battery warning feature indicates when the battery needs replacement

UL Certified, 10-year limited warranty

Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide

85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event

Battery operated to provide reliable detection, even during power outages; two AA batteries included

UL Certified with a 10-year limited warranty on alarm

Compatible with Amazon Alexa, Google Home, iPhone, & Android smart devices

Indoor Air Quality Monitoring: monitors harmful chemicals known as Total Volatile Organic Compounds (TVOCs) that come from cleaning products & paint, also monitors humidity & mold risk

WiFi enabled technology allows notifications to be sent to your smartphone (as well as friends & family) in the event of a CO hazard in your home

Electrochemical sensor technology detects poisonous carbon monoxide gas inside your home

First UL listed carbon monoxide & indoor air quality monitoring device; 10-year limited manufacturer warranty on alarm - not a battery replacement claim

Product 1: Advanced technology – smoke and carbon monoxide detector combines ionization & electrochemical sensors to detect invisible fire particles & CO gas

Product 2: Ionization sensing technology may detect invisible fire particles, associated with flaming fires, quickly and sound an 85dB alarm

Product 2: Hardwired smoke detector with battery backup (included) ensures that you'll be alerted to a fire, even during a power outage

Product 2: Large base makes mounting easy, while a front battery pull lets you activate the smoke alarm without removing it from the mounting bracket

Product 2: Whole home family protection - place 1 fire alarm on each level of your home & in your bedroom; maximum of 24 Kidde devices can be interconnected

Product 1: Hush feature silences nuisance or “false” alarms – with just the push of a button on the alarm itself

Product 2: Ionization sensing technology - hardwired smoke detector detects visible fire particles, 85 decibel alarm alerts of fire

Product 2: Protects during a power failure - smoke alarm operates on a 120V power source with 3V lithium battery backup

Product 2: Whole home family protection - place 1 fire detector on each level of your home & in your bedroom - maximum of 24 Kidde smoke or CO detectors can be interconnected in a multiple stations

Product 2: Test-Hush Feature - silences the unit for approximately 9 minutes. Alarm Memory Indicator

Product 1: Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide

Product 2: Heat detector alerts to temperatures rising above 135⁰ Fahrenheit & sounds an 85-decibel alarm to help protect your family

Product 2: Protects during a power failure - heat alarm operates on a 120V wired power source with 9V battery backup

Product 2: Quick-connect power harness makes installation fast and easy

Product 2: Test Button lets you check that the heat sensor’s electronic circuitry, horn, and battery are working