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Long-term use & replaceable battery: this durable mini smoke alarm will monitor for smoke and fire for about 10 years; the battery can support 5-year continuous use and can be easily replaced by yourself.
Easy installation with guaranteed quality: requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; we provide a 60-day money-back guarantee and a 5-year warranty. Self-check & silence functions: features a low-battery warning so you know when it’s time to replace the battery for safety; if non-emergency smoke e. G. Cooking fumes causes nuisance alerts, you can easily silence them by pressing the test/silence button.

Connects multiple alarms together for wireless safety network. First alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 Based on a First Alert Brand Trust Survey in February 2018.


2 alarm types for more convenient: different alarm patterns of this carbon monoxide detector and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the LCD display; smoke alarm: delivers 3 long beeps every 1.
Fewer false alarms: x-sense carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit. Easy installation with guaranteed quality: x-sense smoke carbon monoxide detector combo requires no rewiring; easy to mount on any wall or ceiling without an electrician; all X-SENSE CO detector and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with a 60-day money-back guarantee and 5-year warranty.

Voice alarm with 11 programmable locations tells you where the danger is so you can choose the best evacuation route; Loud, 85-decibel siren sounds to alert you to danger.
Wirelessly connect upto 18 first alert enabled alarms for the maximum in whole home protection; includes test/silence button, low battery warning, end of life timer. Help keep your family safe with these battery operated smoke alarms that wirelessly interconnect with each other and other First Alert enabled alarms so that all sound when one is activated, creating a home safety network; comes in a pack of 2 alarms.

Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire. Keep your family safe with this 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure.
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected. Dust cover. Simple to use, with a single test/silence button, and side-load battery compartment; Tamper-resistant locking brackets and universal mounting brackets make installation easy.

We provide a 12-month worry-free refund guarantee and a 5-year warranty. Combo smoke detector/carbon monoxide alarm Detects Battery-operated Unit installs Quickly and Easily Without an Electrician, loud 85dB Decibel alarm.
1. FIRST ALERT
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SCO500B, First Alert Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location
#adFIRST ALERT #ad - When your alarms are interconnected, they communicate with each other, forming an integrated system of protection for your home. Connects multiple alarms together for wireless safety network not z-wave compatible. Voice alarm gives clear indication of what the danger is and where it is located.More information #ad
Wireless interconnect uses radio frequency communication to connect the alarms, without any electrical wiring needed. Battery operated smoke and carbon monoxide alarm can be installed easily. When one alarm sounds, all alarms will sound.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5.13 Inches |
Length | 5.13 Inches |
Weight | 0.6 Pounds |
Width | 2.38 Inches |
Part Number | SCO500B |
Model | OLCOMBOVFF |
Warranty | 7 |
More information #ad
2. Kidde
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Kidde P4010DCSCO-W Wire-Free Interconnect Combination CO 10-Year Sealed-in Lithium Battery Smoke Alarm
#adKidde #ad - Voice notifications. Bug screen. Flashing lED Status Ring. Sealed-in Lithium Battery. Wire-free interconnect compatible only with other P4010 Wire-Free models. Supervised wire-free interconnect.More information #ad
Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.59 Inches |
Length | 1.91 Inches |
Weight | 0.6 Pounds |
Width | 5.59 Inches |
Part Number | 21027311 |
Model | P4010DCSCO-W |
Warranty | 10-year limited warranty |
More information #ad
3. X-Sense
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3-Pack, Replaceable Battery-Operated Mini Fire Alarm, X-Sense Wireless Interconnected Smoke Alarm Detector with Over 820 ft Transmission Range, XS01-WR
#adX-Sense #ad - Know from anywhere: when one alarm activates, all interlinked smoke alarms will sound; wireless technology with over 820 FT 250 m transmission range in open air uses radio frequency to both transmit and receive messages concerning fire hazards in the home, giving you every extra life-saving second available to escape.Long-term use & replaceable battery: this durable mini smoke alarm will monitor for smoke and fire for about 10 years; the battery can support 5-year continuous use and can be easily replaced by yourself.
More information #ad
Easy to interlink: simply press the test/silence button to interconnect your wireless smoke detectors; a maximum of 24 wireless smoke alarms can be interconnected; this wireless interconnection ability is only compatible with other X-Sense wireless smoke alarms. Easy installation with guaranteed quality: requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; we provide a 60-day money-back guarantee and a 5-year warranty. Self-check & silence functions: features a low-battery warning so you know when it’s time to replace the battery for safety; if non-emergency smoke e. G. Cooking fumes causes nuisance alerts, you can easily silence them by pressing the test/silence button.
Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 1.89 Inches |
Length | 3.07 Inches |
Weight | 0.66 Pounds |
Width | 3.07 Inches |
Model | XS01-WR |
More information #ad
4. FIRST ALERT
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First Alert SCO501CN-3ST Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Location
#adFIRST ALERT #ad - Loud 85 decibel alarm. Voice alarm gives clear indication of where the problem is located. Battery operated smoke and carbon monoxide alarm can be installed easily.Connects multiple alarms together for wireless safety network. First alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 Based on a First Alert Brand Trust Survey in February 2018.
More information #ad
Features photoelectric smoke sensor and electrochemical CO sensor. One button silences a false alarm and tests the unit. Note: kindly refer to the user manual provided as a PDF manual in the product description section.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 5 Inches |
Weight | 0.2 Pounds |
Width | 5 Inches |
Part Number | SCO500 |
Model | SCO500 |
Warranty | 7 Year |
More information #ad
5. FIRST ALERT
#ad
First Alert Wireless Battery Operated Smoke & Carbon Monoxide Alarm 2 Pack
#adFIRST ALERT #ad - Features photoelectric smoke sensor and electrochemical CO sensor. Battery-operated smoke and carbon monoxide alarm can be installed easily. One button silences a false alarm and tests the unit.More information #ad
Voice alarm gives clear indication of where the problem is located. Note:kindly refer to the user manual provided as a PDF manual in the product description section. 2 pack. Connects multiple alarms together for wireless safety network.Brand | FIRST ALERT #ad |
Weight | 0.72 Pounds |
Part Number | SCO501CN-3ST |
Model | SCO500 |
More information #ad
6. X-Sense
#ad
Silence Button & LED Indicator, 5-Pack, Compliant with UL 217 & UL 2034 Standards, X-Sense SC03 10-Year Battery Not Hardwired Smoke and Carbon Monoxide Detector Alarm, Auto-Check
#adX-Sense #ad - 10-year battery life: this combination smoke detector and carbon monoxide detector alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and CO levels, even if there's a power failure; an end-of-life signal will let you know when it’s time to replace the unit for safety. Simple to use: the test/silence button of this smoke alarm carbon monoxide alarm enables you to test the alarm weekly, an alarm tone of over 85 dB will instantly alert the entire household, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, even those in sleep.2 alarm types for more convenient: different alarm patterns of this carbon monoxide detector and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the LCD display; smoke alarm: delivers 3 long beeps every 1.
More information #ad
5 seconds and the red led flashes with the alarm sound; CO alarm: delivers 4 quick beeps every 5. 8 seconds and the red LED flashes with the alarm sound. Fewer false alarms: x-sense carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit. Easy installation with guaranteed quality: x-sense smoke carbon monoxide detector combo requires no rewiring; easy to mount on any wall or ceiling without an electrician; all X-SENSE CO detector and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with a 60-day money-back guarantee and 5-year warranty.
Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 2.52 Inches |
Length | 5.75 Inches |
Width | 5.75 Inches |
Part Number | SC03 |
Model | SC03 |
More information #ad
7. FIRST ALERT
#ad
SA511CN2-3ST, First Alert Smoke Detector Alarm | Battery Powered with Wireless Interconnect | 2-Pack
#adFIRST ALERT #ad - Battery powered alarm requires no rewiring for installation and provides continued monitoring even if there's a power failure; use with Polaroid AA batteries for best results. Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; Helps minimize the number of false alarms.Voice alarm with 11 programmable locations tells you where the danger is so you can choose the best evacuation route; Loud, 85-decibel siren sounds to alert you to danger.
More information #ad
First alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 Based on a First Alert Brand Trust Survey in February 2018. Wirelessly connect upto 18 first alert enabled alarms for the maximum in whole home protection; includes test/silence button, low battery warning, end of life timer. Help keep your family safe with these battery operated smoke alarms that wirelessly interconnect with each other and other First Alert enabled alarms so that all sound when one is activated, creating a home safety network; comes in a pack of 2 alarms.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 0.65 Pounds |
Width | 0 Inches |
Part Number | SA511CN2-3ST |
Model | SA511CN2-3ST |
Warranty | 10 year |
More information #ad
8. FIRST ALERT
#ad
3-Pack, First Alert BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup
#adFIRST ALERT #ad - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection.Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire. Keep your family safe with this 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure.
More information #ad
First alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 Based on a First Alert brand trust survey in February 2018. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected. Dust cover. Simple to use, with a single test/silence button, and side-load battery compartment; Tamper-resistant locking brackets and universal mounting brackets make installation easy.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.2 Inches |
Length | 5.6 Inches |
Weight | 0.7 Pounds |
Width | 5.6 Inches |
Part Number | SC9120BFF-3 |
Model | BRK SC9120B-3 |
More information #ad
9. TJTFJS
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2 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Portable Smoke and Co Alarm for Home Bedroom Travel
#adTJTFJS #ad - Mini combination of carbon Monoxide Detector and Smoke alarm Simple style Designed for Kitchen and Travel. If you have any questions or concerns, please do Not Hesitate to Contact Us at Any Time, and We Will Reply to You within 24 Hours.We provide a 12-month worry-free refund guarantee and a 5-year warranty. Combo smoke detector/carbon monoxide alarm Detects Battery-operated Unit installs Quickly and Easily Without an Electrician, loud 85dB Decibel alarm.
More information #ad
Photoelectric sensor detects smoke While Minimizing false alarms, Electrochemical CO Sensor Alerts you to Carbon Monoxide Danger. Smoke and co detector you can hear the low power alarm When the Power is Going to Run out, and Won’t Miss the Chance to Change the New Battery.Brand | TJTFJS #ad |
Manufacturer | TJTFJS #ad |
Height | 1.45 Inches |
Length | 4.17 Inches |
Weight | 1.08 Pounds |
Width | 4.17 Inches |
Part Number | 891712RXJLLQXB |
More information #ad