Wireless smoke detectors have three advantages over wired systems; these include their mobility, they can be placed anywhere. Since they do not require a power connection, you are not limited to the number or pattern of units you can place in seconds, and being wireless is easy to replace with an updated model, again, in seconds.

Top-Rated Wireless Smoke Detectors List:

There are a number of key factors to consider when buying a wireless smoke detector, and these include the VdS or DIN certification mark. A verified and certified product is one that will work.

After this, you need to concentrate on the battery, which must be a high-quality Lithium battery that will last for years. You don’t want to deal with changing batteries every few months.

Make sure the device has a test button for checking its function ability, and only invest in an optical device, one that sends out a beam of light. These refract against smoke and make for the earliest alarms available.

The basics of smoke detector 101 are answered in a FAQ section after the product review. I have assembled the 10 best wireless smoke detectors on the market, and any one of these will provide you with the safety and security as well as peace of mind that you seek.

Best Wireless Smoke Detectors Reviews:

1. Nest Protect Smoke and Carbon Monoxide Alarm

Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated ,...
  • Smoke detector and carbon monoxide detector that speaks up...
  • Split Spectrum Sensor looks for both fast burning and...
  • Get phone alerts so you know something's wrong even when...
  • CO detector looks out for carbon monoxide and tells you...
  • With App Silence you can silence the smoke alarm with your...

The Nest Protect wireless detector is both smoke and CO2 detector, which is an added advantage over other models on the market today. This model comes with a self-testing system as well as a split-spectrum sensor that constantly scans for gas and smoke.

This model comes with many interesting features, and these include a heads up alert system, a sound check option as well as a Steam checker.

The Wireless Interconnect function comes with an Emergency Shutoff with Learning Thermostat, as well as an Emergency clip record. This is a very simple and easy product to place, and it takes minutes literally to position it and let it start working.


  • Generation: 2nd Generation
  • Power: Six long-life AA Energizer® Ultimate Lithium batteries
    • Wired 120V Connector
    • Three long-life AA Energizer® Ultimate Lithium backup batteries
  • Color: White
  • Sensors:
    • Split‑Spectrum Sensor, 450nm and 880nm wavelength
    • The 10-year electrochemical carbon monoxide sensor
    • Heat sensor, ± 1.8°F (± 1°C)
    • Humidity sensor, ± 3%RH
    • The occupancy sensor, 120° field of view to 20 feet
    • Ambient light sensor, 1-100k Lux Dynamic Range
    • Omnidirectional microphone, 70dBA SNR
  • Speaker, horn, and light ring
    • 2 Watt Speaker
    • Horn: 85dB SPL at 10 feet (3 m)
    • RGB color ring with 6 LEDs
  • Dimensions: Height: 5.3” (13.4 cm) x Width: 5.3” (13.4 cm) x Depth: 1.5” (3.85 cm)
  • Weight: Mass: 13.9 ounces (379 g)
  • Connectivity requirements
    • Wi-Fi connection with internet access
    • Nest app on phone or tablet with Android or iOS. See the Nest app requirements for supported versions.
    • Free Nest Account
  • Working Wi-Fi connection: 11b/g/n @ 2.4GHz
  • Wireless Interconnect: 15.4 @ 2.4GHz
  • Bluetooth Low Energy (BLE)
  • Standards
    • UL 2034 - “Single and Multi-Station Carbon Monoxide Alarms”
    • UL 217 - “Single and Multi-Station Smoke Alarms”
    • NFPA-72 - “National Fire Alarm and Signaling Code”

2. Kidde RF-SM-DC Wireless Interconnect Battery-Operated Smoke Alarm

Kidde Wireless Smoke Detector, AA Battery Operated (Included), Ionization Sensor Wire-Free...
  • Ionization sensor technology senses invisible fire...
  • Operates on 2-AA alkaline batteries (included), providing...
  • An 85-decibel alarm sounds & a red LED indicates the smoke...
  • Enables extension of coverage & protection without any need...
  • When one alarm sounds, they all do, providing an early...

The Kidde Wireless Battery Powered Smoke Alarm is very easy to install a model that comes with very simple to operate instructions. You can also interconnect the alarms into a larger network so that when one sensor activates an alarm, all the others will sound off as well. There is an advantage in this that you will hear the alarm wherever you are, but the disadvantage is that you don't know where the problem originates.

There is a Tamper Resist Locking Pin which is useful against malicious intent, and the Low Battery Indicator will sound off when the battery is low. The application is easy, just set the base and then twist the unit into place.


  • Power Source: 3 AA batteries
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40F (4.4C) to 100F (37.8C)
  • Humidity Range: up to 85% relative humidity (RH)
  • Sensor: Ionization
  • Wiring: None
  • Size: 75” in diameter x 1.25” depth
  • Weight: .5lb
  • Interconnects: Up to 24 devices (of which 18 can be initiating)

3. First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated

First Alert SA511CN2-3ST Wireless Interconnected Smoke Alarm with Voice Location, Battery Operated,...
  • The front cover design of the alarm may vary but product...
  • Help keep your family safe with these battery operated smoke...
  • Voice alarm with 11 programmable locations tells you where...
  • Equipped with photoelectric smoke sensor optimized to detect...
  • Battery powered alarm requires no rewiring for installation...

The First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm comes with a unique feature that allows you to know where the danger originated, and this is a voice message alarm. It will tell you which location the sensor activated, even when all the sensors are sounding off their alarms.

The siren is an 85-dB alarm with voice and is activated when a photoelectric sensor detects actual smoke, not steam. This means you can place this in your bathroom, and also in your kitchen and you will not get a false alarm.

The alarms are interconnected, so when the first one is triggered they rest will sound off, but will give you the location of the original alarm, thereby removing doubt and directing you to deal with the emergency.


  • SKU(s) SA511CN2-3ST, SA511B, SA511-WWG, SA511CN-6
  • Model SA511
  • Battery Type Two AA
  • Sensor Type Photoelectric
  • Item Length 5” x 2” x ”
  • Item Weight 8 lbs.

4. Kidde Hardwire Smoke Alarm with Hush Feature and Battery Backup, Contractor Pack

Kidde Smoke Detector, Hardwired Smoke Alarm with 9-Volt Battery Backup, Test-Reset Button,...
  • Ionization sensor technology senses invisible fire...
  • Smoke alarm operates on a 120V wired power source with a...
  • An 85-decibel alarm sounds & a red LED indicates the smoke...
  • Test-Hush button makes it easy to test the smoke detector...
  • Interconnection capability: allows you to connect up to 18...

The Kidde i12040A is a wired system that comes with a 9V battery backup, so you can essentially install it without wiring it up. This system is a comprehensive photoelectric sensor-based alarm unit; it detects smoldering fires as well as smoke and carbon dioxide.

This model comes in a 6-piece contractor pack, so you can set up six at a time, and create a proper network of alarms in one fitment.

This model comes with a one-button design, and this means you don’t need to “learn” how to operate the system, and it includes their proprietary Hush™ and alarm test. If you want to use the wiring, you get a pre-stripped wiring harness that comes with an easy off cap. You also did need to use a stripper; the wires are tinned and ready for connection.

This model includes a tamper resist lock as well as an interconnected alarm firing sequence that enables all the alarms to sound once one is triggered.


  • Model Number: i12040A
  • Power Source: 120VAC (80mA) with 9V Battery Back Up
  • Sensor: Ionization
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
  • Humidity Range: 5%-95% relative humidity (RH)
  • Size: 6” in diameter x 1.55” depth
  • Weight: .5lb
  • Interconnects: Up to 24 Kidde devices
  • Wiring: Quick-connect plug with 8” pigtails
  • LED: Red, 4 modes of operation, Green, indicates AC power

5. Kidde 21010625 Battery Operated Wireless Interconnected Combination Smoke & Carbon Monoxide Alarm

Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery, Interconnect Combination Smoke & CO Alarm,...
  • CO detector with voice alert modes & LED lights that pulse...
  • Photoelectric sensor technology - smoke detector detects...
  • Protects during a power failure - combo smoke and CO alarm...
  • Low battery warning feature indicates when the battery needs...
  • UL Certified, 10-year limited warranty

The Kidde KN-COSM-B-RF Combination Smoke & Carbon Monoxide Alarm comes with a set of handy functions that give you the benefit of two safety devices in a single unit.

The alarm also notifies you of the type of danger that is detected, between “Fire”, “Warning, Carbon Monoxide”, “Low Battery”, and “Caution, Carbon Monoxide Previously Detected.”

There is a Test/Reset Button which you can activate any time after installation, and there is a Flashing green led that shows normal operation and flashing red LED warning against alarm conditions.

This is either an individual sensor or part of an interconnected series that enables wireless communication between each unit.


  • Part Number: 900-0225
  • Model: KN-COSM-B-RF
  • Power Source: 3AA battery
  • SmokeSensor: Smoke, Ionization, CO; Electrochemical
  • CoSensor: Electrochemical
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
  • Humidity Range: 10%-85% relative humidity, non-condensing
  • Size: 6" L x 6" W x 1.75" D
  • Weight: 75lb
  • Interconnects: Up to 24 devices (of which 12 can be smoke alarms)

6. Kidde Battery Operated Combination Smoke & Carbon Monoxide Alarm KN-COSM-BA

Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO...
  • 2 units in 1: unit alerts you to smoke & carbon monoxide by...
  • Ionization sensor technology senses invisible fire...
  • Voice Alarm & an 85-decibel alarm announces a hazard when...
  • Operates on 2-AA alkaline batteries, providing reliable...
  • Front-load battery door makes installation & replacement...

The Kidde KN-COSM-BA is another combination Carbon Monoxide & Smoke Alarm and comes in a neat little package that delivers a vocal message telling you what to expect.

The KN-COSM-BA is easy to install, and it can be used as a single unit, or in a matrix of the interconnected communicating wireless system.


  • Model: KN-COSM-BA
  • Power Source: 2 AA Battery
  • Sensor: Smoke: Ionization, CO: Electrochemical
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
  • Humidity Range: 10%-95% relative humidity non-condensing
  • Size: 6” in diameter x 1.8” depth
  • Weight: 13oz
  • Interconnects: No

7. Honeywell 5808W3 Wireless Photoelectric Smoke/Heat Detector

Honeywell 5808W3 Wireless Photoelectric Smoke/Heat Detector
  • Improved Robust RF Field Strength: The distance between the...
  • Smart Check: A signal is sent to the control panel when the...
  • Approved UL Listings for Residential and Commercial...
  • Additional LED Status Indicators: Identifying between alarm...
  • Easy to install Mounting Base: The sturdy mounting base...

Honeywell’s 5808W3 is a very versatile smoke and heat detector and is powered by a 3V lithium battery. The model comes with a photoelectronic smoke/heat detector and a built-in wireless transmitter.

The transmitter sends out an alarm when you tamper, and maintain the unit as well as when activated by a danger source.

Honeywell includes a smoothing algorithm that minimizes nuisance alarms. The base is held on using a stick to back the application, which renders you any need for drilling.

This model is designed with an Improved Robust RF Field Strength for better communication, and also has an integrated fixed temperature (135°F) thermal detector. This sensor will detect a pre-freeze condition when the temperature is below 41°F.

You also get the Smart Check self-testing alarm, which indicates that you need to clean the detector cover.


  • Power: One long-life 3V lithium battery
  • Microcontroller: 0 MHz clock
  • Alarm: 3 KHz with a sound pressure level of 85 dBA at 10 feet
  • Wireless: Built-in the wireless transmitter, temporal code 3 sounder
  • Maintenance Standards: NFPA 72, 7-2.2 and is approved by UL

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

Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low...
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power...
  • Conveniently designed & portable: simple to install on a...
  • Green LED indicates power to the smoke detector, while an...
  • Peak Level Memory records the last time carbon monoxide was...

The Kidde KN-COPP-B-LPM is their Carbon Monoxide Alarm and comes with a plethora of functions that provides you with a perfect CO2 detector perfect for garages.

This model comes with a Digital Display that shows CO level in PPM (parts per million), and this display is updated every 15 seconds, so you get an accurate reading.

There is a Peak Level Memory display that shows the highest CO concentration measured since the last reset, and a Test/Reset Button. The Low Battery Signal is used to notify you when the battery is reaching critical levels, and the Slide-Out Battery Door Cover makes changing the battery easy.


  • Model: KN-COPP-B-LPM
  • Power Source: Three AA batteries (included)
  • Sensor: Electrochemical
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
  • Humidity Range: 5% to 95% relative humidity (RH)
  • Size: 5”L x 2.75”H x 1.5” D
  • Weight: .66lbs (with batteries)
  • Wiring: No
  • Interconnects: No

9. First Alert SMOKE1000-3 Atom Micro Photoelectric Smoke Alarm 3 Pack

First Alert SMOKE1000 Atom Micro Photoelectric Smoke Detector, White, 1-Pack
  • Micro design is 62% smaller than standard smoke alarms
  • Photoelectric sensor provides accurate detection and reduces...
  • Loud 85-decibel siren and single test/silence button
  • Smoke detector comes with 3-volt lithium battery
  • SafeMount system prevents alarm from being installed without...

Each one of these First Alert P1000 Atom Smoke and Fire Alarm provides delivers a punch of protection in a very small package. So, when you combine three, you get triple the power and a much more attractive and reliable package.

The Atom comes in a sleek, contemporary design that delivers 19 years of uninterrupted services with its lithium battery. The advanced smoke entry system is made using microtechnology, so the size of the unit is reduced significantly.

A siren is an 85db unit, and it emits a T3 pattern alarm. The whole package includes a special photoelectric component that reduces false alarms.


  • Weight: 0 oz
  • Operating Voltage: 3V Lithium Power Cell
  • Temperature Range: 40F (4C) to 100F (38C)
  • Humidity Range: 10% to 95% relative humidity (RH)
  • Audio Alarm: 85dB at 10 feet
  • Test/Silence: Yes
  • Smoke Sensor: Photoelectric
  • Standards: UL217
  • Product Dimension: 5 x 1.5 x 1.5 in.

10. First Alert Battery Operated Combination Smoke and Carbon Monoxide Alarm - SCO5CN

First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1...
  • The front cover design of the alarm may vary but product...
  • Keep your family safe with this battery operated smoke and...
  • Features an electrochemical carbon monoxide sensing...
  • Indicator lights on the face of the unit display the...
  • Battery operated unit installs quickly and easily without an...

First Alert Combination Smoke and Carbon Monoxide Alarm SCO5CN is a double action alarm that is activated by smoke and CO and has an internal steam detector to reduce false alarm activation.

This model uses an Electrochemical Sensor to optimize efficiency in detecting carbon monoxide UL217 and UL2034 Standards.

The EZ access battery drawer frees you from having to take off the unit; you just pull out the drawer and place in the new battery. This model comes with a low battery alarm that will operate for up to 8 hours.


  • Power: 2 AA batteries included.
  • Sound: Loud 85db alarm, T3 Pattern
  • Standards: UL217, UL2034.
  • Dimensions: 5” x 2” x 5”
  • Weight: .8 lbs.


How many carbon monoxide detectors do I need?

The number depends on the size of your home, but essentially detectors should be placed in every room. If a room is large, then consider placing more than one detector.

What is better photoelectric or ionization smoke detector?

Both handle different sources of activation, however for smoke, the photoelectric sensor is better, and for flames and fast heat and ionization unit is better. The best is a combination of both, so you cover all aspects.

What type of smoke alarm is best for the kitchen?

Photoelectric alarms are best for a kitchen, but make sure it comes with a good steam detection function. Otherwise, you will get a lot of false alarms.

How long do hard-wired smoke detectors last?

The standard is set at 10 years, and battery life in these units is around 5 to 10 years. A good CO detector will last between 5 to 7 years.

Where should a carbon monoxide detector be installed?

CO detectors should be set on every floor, at least five feet from the ground.

Featured Image: pinterest.com

About the Author Anton Scharff

Anton is a hunting expert who respects nature. Ask him anything about large game. Lover of the great outdoors.

Share your thoughts

Your email address will not be published. Required fields are marked

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}