As an Amazon Associate I earn from qualifying purchases.
10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety the date printed on the item is the manufacturing date, not the expiration date.
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. States/cities where required. Features a sleek, low profile design to blend more fully into the wall and out of sight.


It can ship within the US except New York and California. Electrochemical co sensor is the most accurate technology available. Electrochemical CO Sensor is the most accurate technology available. Separate smoke and co detects both dangers and eliminates the need for two separate alarms.


No chirps to tell you the battery is low; Nest Protect tests its own batteries and gives you a Nightly Promise when you turn off the lights so you know everything is working.
Know from anywhere. It speaks up to tell you if there’s smoke or CO and where the problem is, so you know what to do. With app silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke. With safety check you can test all your smoke and CO alarms with just a tap and get a full report once the test is done. Tells you what and where.



Includes 9v battery; use polaroid 9V batteries for best results or a lithium 9V battery for longer service life. 9-volt battery included; 10-year limited warranty.
It can ship within the US except New York. Ionization battery-operated smoke alarm with escape light. Help keep your family safe with this battery-operated smoke alarm that includes a light to illuminate an escape path in the event of an emergency. Low battery warning and tamper resistant.

Interconnectivity: unlike other smart combo alarms, safe and sound can connect with any other hardwired alarms in your home including First Alert and non First Alert brands, and can send a mobile notification for any detected emergency, keeping your whole home safe and connected.
Voice alerts: key voice location technology annoz the type and location of the danger in your home, keeping your entire home safe and connected during an emergency. Safe & sound supports AirPlay 2 and requires iOS 12. 2 or later or macOS 1014. 4 or later. Airplay 2 enables a wireless multi room audio system, creating an easy way to stream music anywhere in the home to different iOS and other AirPlay 2 compatible devices.

We offer 7*24 hour customer service and 12-month warranty. If you have any question, plug not included. Led display this co monitor is simple in design, 7. 6-inch led display with no refection, which could be seen clearly in any corner.
Real-time monitoringthis carbon monoxide detector can accurately monitor co concentration, environmental humidity, air quality, and temperature in real-time. Portable and easy to hang oncomes with the adhesive strip. Design with hang hole. Digital alarm clock is as add-on feature. When the alarm is activated, alarm every 15 seconds; 131-300ppm value display is orange, any key can be used. Aa battery is backup one.
1. First Alert
#ad
White, First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery
#adFirst Alert #ad - Rigorously tested to meet UL standards. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. S. Complies with all current 10 year legislation in U. A loud 85 decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise.10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety the date printed on the item is the manufacturing date, not the expiration date.
More information #ad
Features electrochemical carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. 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. States/cities where required. Features a sleek, low profile design to blend more fully into the wall and out of sight.
Brand | First Alert #ad |
Manufacturer | First Alert #ad |
Height | 0.96 Inches |
Length | 4.92 Inches |
Weight | 0.5 Pounds |
Width | 4.92 Inches |
Part Number | PRC710 |
Model | PRC710 |
More information #ad
2. Kidde
#ad
WHITE, Kidde KN-COSM-BA Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
#adKidde #ad - Talking alarm announces the hazard type detected, helping to speed up reaction time. Battery safeguard ensures the unit cannot be accidentally mounted without batteries installed.More information #ad
A single unit can be installed where previously two were needed. Test-reset button tests alarm circuitry and triggers the voice announcement. Meets requirements of Underwriters Laboratories UL, an independent facility that tests products for safety compliance.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1.8 Inches |
Length | 5.6 Inches |
Weight | 0.65 Pounds |
Width | 5.6 Inches |
Part Number | 900010202 |
Model | KN-COSM-BA |
Warranty | Ten-year limited warranty |
More information #ad
3. FIRST ALERT
#ad
First Alert BRK SCO2B Smoke and Carbon Monoxide CO Detector with 9V Battery , White
#adFIRST ALERT #ad - End of life signal provides Audible Notice When Alarm Needs to be Replaced. Separate smoke and CO detects both dangers and eliminates the need for two separate alarms.It can ship within the US except New York and California. Electrochemical co sensor is the most accurate technology available. Electrochemical CO Sensor is the most accurate technology available. Separate smoke and co detects both dangers and eliminates the need for two separate alarms.
More information #ad
Two locking features Pins Lock Battery Drawer and/or Alarm to Base. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Latching alarm indicator Remembers Which Unit Initiated an Alarm. Latching alarm indicator remembers which unit initiated an alarm.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 5.6 Inches |
Weight | 0.59 Pounds |
Width | 5.6 Inches |
Part Number | SC02B |
Model | SCO2B |
Warranty | 7 Year Limited Warranty |
More information #ad
4. Kidde
#ad
Kidde Carbon Monoxide Detector, CO Alarm with Replacement Alert, AC Plug-In with Battery Backup
#adKidde #ad - Easy & quick installation - plugs into any standard AC wall outlet. Ul certified, 10-year limited warranty. Co detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.More information #ad
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas. Plug-in that still works during a power failure - 2-AA batteries included provide backup for your CO alarm in the event of a power outage.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 4.5 Inches |
Length | 2.75 Inches |
Weight | 0.04 Pounds |
Width | 1.5 Inches |
Part Number | 900-0263 |
Model | KN-COB-DP2 |
More information #ad
5. Google
#ad
Battery Operated , White, S3000BWES, Smoke Detector and Carbon Monoxide Detector, Google Nest Protect, Smoke Alarm
#adGoogle #ad - 10-year carbon monoxide sensor. Split spectrum sensor looks for both fast burning and smoldering, and tells you where the danger is. Carbon monoxide is odorless, invisible and deadly. Connect nest protect to wi-Fi and it will send an alert to your phone if the alarm goes off or the batteries run low.No chirps to tell you the battery is low; Nest Protect tests its own batteries and gives you a Nightly Promise when you turn off the lights so you know everything is working.
More information #ad
Get phone alerts so you know something's wrong even when you're away from home1. Connectivity: Bluetooth 4. 0 le, wi-fi 4 802. 11n. Simply walk to the Nest Protect that noticed the problem and open the Nest app. Know from anywhere. It speaks up to tell you if there’s smoke or CO and where the problem is, so you know what to do. With app silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke. With safety check you can test all your smoke and CO alarms with just a tap and get a full report once the test is done. Tells you what and where.
Brand | Google #ad |
Manufacturer | Google Nest #ad |
Height | 5.3 Inches |
Length | 5.3 Inches |
Weight | 1 Pounds |
Width | 1.5 Inches |
Part Number | S3000BWES |
Model | 06A |
More information #ad
6. Kidde
#ad
Kidde PE9 P9050 Battery-Operated Photoelectric Sensor Smoke Alarm
#adKidde #ad - Basic smoke detector, cost-effective and easy to operate to help protect your home & family. Ul certified, 10-year limited warranty. Easy to install - no wiring needed.More information #ad
Protects during a power failure - smoke alarm operates on one, 9-volt battery included in the back of the unit. Single test/hush button - ensure that the alarm is working and silence false alarms.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1 Inches |
Length | 1 Inches |
Weight | 0.3 Pounds |
Width | 1 Inches |
Part Number | 21026053 |
Model | p9050 |
Warranty | 5 Year Limited |
More information #ad
7. Kidde
#ad
White, Kidde Smoke Detector, Battery Powered Smoke Alarm with Test Button, Battery Included,Pack of 1
#adKidde #ad - Basic smoke detector with a red LED to indicate that the alarm is receiving power and a test button to confirm that it's working. Powered by a 9-volt battery included, the Kidde smoke alarm protects your family even during a power outage.More information #ad
Low battery warning chirp indicates when the battery needs replacement. Easy installation - no hardwiring required: mounts easily to the ceiling with bracket included, easy battery replacement at the back of the alarm. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1 Inches |
Length | 2 Inches |
Weight | 1 Pounds |
Width | 1 Inches |
Part Number | i9050 |
Model | i9050 |
More information #ad
8. FIRST ALERT
#ad
FIRST ALERT SA304CN3 Smoke Alarm with Escape Light
#adFIRST ALERT #ad - Also features a single test/silence button and EZ-Access battery door. Also includes side battery drawer and missing battery guard. To ensure complete protection make sure to place one on each level of your home and in each bedroom.Includes 9v battery; use polaroid 9V batteries for best results or a lithium 9V battery for longer service life. 9-volt battery included; 10-year limited warranty.
More information #ad
Features convenient silence/test button, blinking power light, 85-decibel alarm. Alarm features an ionization sensor for smoke detection and is effective in recognizing smoke from flaming fires such as paper and grease fires; a loud 85-decibel alarm sounds when smoke levels are elevated. It can ship within the US except New York. Ionization battery-operated smoke alarm with escape light. Help keep your family safe with this battery-operated smoke alarm that includes a light to illuminate an escape path in the event of an emergency. Low battery warning and tamper resistant.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.5 Inches |
Length | 8.5 Inches |
Weight | 0.33 Pounds |
Width | 7 Inches |
Part Number | SA304CN3 |
Model | SA304CN3 |
Warranty | TEN YEAR LIMITED |
More information #ad
9. FIRST ALERT
#ad
Smart Hardwired Smoke + Carbon Monoxide Alarm and Premium Home Speaker with Amazon Alexa, First Alert Onelink Safe & Sound
#adFIRST ALERT #ad - To use airplay 2, update your devices to the latest software version and add your AirPlay 2-compatible speakers to the Home app on your iOS device. About safe and sound: first alert introduces onelink safe and sound, Apple HomeKit compatible hardwired photoelectric smoke and electrochemical carbon monoxide alarm, featuring a state of the art, an Alexa enabled, Omni directional speaker backed by First Alert’s unparalleled reliability and equipped with the power of Alexa.Interconnectivity: unlike other smart combo alarms, safe and sound can connect with any other hardwired alarms in your home including First Alert and non First Alert brands, and can send a mobile notification for any detected emergency, keeping your whole home safe and connected.
More information #ad
No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. Voice alerts: key voice location technology annoz the type and location of the danger in your home, keeping your entire home safe and connected during an emergency. Safe & sound supports AirPlay 2 and requires iOS 12. 2 or later or macOS 1014. 4 or later. Airplay 2 enables a wireless multi room audio system, creating an easy way to stream music anywhere in the home to different iOS and other AirPlay 2 compatible devices.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 7 Inches |
Weight | 1.76 Pounds |
Width | 7 Inches |
Part Number | 1039102 |
Model | 1039102 |
Warranty | 3 year limited warranty |
More information #ad
10. LYCHL
#ad
Indoor Air Quality Monitor Carbon Monoxide Detector,CO Monitor with Digital Alarm Clock,CO Detector Alarm with Humidity and Indoor Thermometer Monitor
#adLYCHL #ad - Color warning and sounding alarm0-50ppm: value display is white, no sound; 51-130ppm: value display is yellow, alarm every 2 seconds. If you would like to carry it out, please contact us. The indoor air quality meter is embedded with a high-performance chip with a precision sensor.We offer 7*24 hour customer service and 12-month warranty. If you have any question, plug not included. Led display this co monitor is simple in design, 7. 6-inch led display with no refection, which could be seen clearly in any corner.
More information #ad
The portable smart carbon monoxide detector can help us detect the carbon monoxide content in the living room, car, travel, kitchen, school, camping, bedroom, hotel, office, party, etc. Real-time monitoringthis carbon monoxide detector can accurately monitor co concentration, environmental humidity, air quality, and temperature in real-time. Portable and easy to hang oncomes with the adhesive strip. Design with hang hole. Digital alarm clock is as add-on feature. When the alarm is activated, alarm every 15 seconds; 131-300ppm value display is orange, any key can be used. Aa battery is backup one.
Brand | LYCHL #ad |
Manufacturer | Huihe Intelligent #ad |
Height | 1.38 Inches |
Length | 7.68 Inches |
Width | 3.15 Inches |
More information #ad