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Best Wireless Smoke Detectors of 2020

By ClayboxXsense |

A smoke detector is essentially a device that works to detect smoke and alert you, typically using an audio alarm. These devices come enclosed in round plastic cases and are usually mounted on the ceiling to maximize their detection capability. While commercial and industrial smoke detectors are usually connected to a central fire alarm system, the domestic wireless smoke detectors can be individual units powered by batteries. Some of the top wireless smoke detectors of 2020 include:

  • Nest S3000BWES
  • First Alert Combination Smoke & Carbon Monoxide Detector
  • Onelink Safe & Sound with Alexa
  • Kidde KN-COSM-BA

The Basics of Wireless Fire Alarm Systems

A wireless fire alarm system is not free from wires. A wireless application of the fire alarm system requires the notification device to be wired to a wirelessly controlled NAC or a notification appliance circuit booster panel. This is a very cost-effective application as you do not have to incur any associated cabling or conduit expenses. Therefore, it is very important to understand these basic differences while calculating the savings and costs associated with installing a wireless fire alarm system.

Best Wireless Smoke Detectors in 2020

1.  Nest S3000BWES

Smoke detectors have become more of a necessity today and it is essential to have at least one if not more, installed in your home. Nest Protect smoke detector is one of the best options available in the market today. This smart smoke detector is capable of detecting smoke as well as carbon monoxide. It gives out verbal alerts and can be easily linked to your other smart home devices.


Unlike most other smoke detectors, this Nest product is square in shape and slightly bigger in size. It includes an LED circle in its center that changes color to alert you of the current situation. Yellow color indicates the presence of smoke or carbon monoxide at less than critical levels. When the color changes to red it means high levels of smoke or carbon monoxide and you must exit the premises. As an added feature it also works as a motion-sensing night light.

Installation and Setup

The product takes anywhere between 5-10 minutes of your time to set up making it very easy to install. Once you have screwed the base plate to the ceiling you just have to attach the main body on it and connect using the NEST app.

Final Word

While this NEST product is one of the best wireless smoke detectors in the market today, it is also one of the most expensive options. However, its comprehensive capabilities and reliability make it a popular choice.

2. First Alert Combination Smoke and Carbon Monoxide Detector

First Alert is a well-known name in the smoke detector industry. This specific product is popular because of the great value that it offers to its users. If you are looking for a smoke alarm and do not have any carbon monoxide detectors installed, then this First Alert alarm is the perfect combination of both these elements.


This smoke detector offers both voice as well as location alerts and notifications in case of smoke, fire, or a gas leak. The pre-programmed settings tell you exactly where the alert has occurred helping you to respond that much faster to it. The detection is highly accurate due to the presence of electrochemical and photoelectronic sensors.

Installation and Setup

This battery-operated smoke detector is fairly easy to set up and does not require any specialized tools to install. After installation, you can pre-program over 10 locations that you will receive alert for in case smoke or gas is detected. The indicator lights on the face of the panel will alert you of any smoke or carbon monoxide and this is accompanied by a siren that is loud and clear.

Final Word

As a product from one of the most trustworthy brands in the market, the First Alert Combination Smoke and Carbon Monoxide detector is an excellent investment. It is also one of the more reasonable products that are available in the market.

3.  Onelink Safe & Sound with Alexa

At the off-set, the Onelink Safe & Sound smoke detector is a very attractive product. It is also an excellent option if you are looking for a smoke detector that can be connected seamlessly with Alexa. Like the Nest product, this Onelink device also comes in a square shape with rounded edges.


To begin with, the Safe & Sound is a hardwired system. This means that it runs on electricity rather than batteries. The device detects smoke using a photoelectronic sensor making it that much more efficient to detect smoke. Apart from smoke, it can also detect carbon monoxide. Upon detection, the smoke detector will beep and also alert you regarding the location of the smoke or the gas leak. You can silence it using your smartphone; however, the alarm will ring again if the smoke is not cleared. 

Installation and Setup

If you have a hard-wired system, then installing the new one will not be an issue. You just have to connect to the existing wires using your adapter plug that you can then attach to your alarm device. After this, you have to screw the mounting bracket on the ceiling and attach the device to it. This comprehensive unit allows you to help detect smoke, listen to music, and also connect with Alexa’s virtual programs.


While the Onelink Safe & Sound product is a technologically advanced option, it will require a decent amount of installation effort. You may need a professional to do this for you, especially if you are using a hardwired system for the first time.

4.  Kidde KN-COSM-BA Combination Detector

The Kiddie Combination detector is number 4 on our list as it uses only ionization sensing technology that is not as efficient as the newer photoelectronic sensing technology. In spite of this, the Kiddie Combination smoke detector remains a favorite because of its excellent features.


The unit is capable of detecting smoke as well as carbon monoxide emissions. Upon detection, the alarm releases voice alerts that are loud and clear. This robust device can also last up to 10 years and is extremely easy to install.

Installation and Setup

To begin with, you do not require any professional help or specialized skills to install this product. You can easily do this yourself and then press the testing button to ensure everything is working properly.


While not the most tech-savvy product in the market, this Kidde unit offers good value for money if you are looking for a basic smoke and CO detector that is reliable.

Fire safety is one of the primary requirements of any commercial or residential building. These reputed smoke detectors help users achieve exactly that. However, installing a smoke detector is just one part of the process. They require regular maintenance and must be upgraded or replaced every 10 years. Also, if you have a battery-operated alarm then the batteries must be replaced every year.