X-Sense vs Kidde: Which is the Best Smart Smoke Detector?

Smart smoke detectors are the best because they can detect and alert you of a fire quickly. It is one less thing to worry about in your life while you sleep or when away from home. The Kidde vs X-Sense comparison makes choosing which smart smoke detector easy so decide what’s important to you today.

A smart smoke detector like Kidde or X-Sense costs around $39 to buy without any subscription fee. This article provides you with a comparison of the X-Sense vs Kidde Smart Smoke Detector and will help you choose the one for your needs and budget.

X-Sense Smoke and Carbon Monoxide Detector Overview

X-Sense 10-Year Battery Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke and CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC08

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There are a variety of smoke detectors on the market and it can be difficult to decide which one is best for your needs. The X-sense Combination CO/Smoke Alarms have many features that make them a great choice. They have a verbal warning system, which alerts you when it detects smoke or CO in your house.

They also use photoelectric and electrochemical technologies to detect both smoke from fast-burning, smoldering fires and dangerous CO concentrations, delivering the best protection.

The X-Sense smoke and carbon monoxide detector is a top-of-the-line product that has many features to keep you safe. Firstly, it has a built-in LCD with multiple indicators which makes it easy to see if carbon monoxide is present.

It will also tell you the battery status, notify you of any faults, and warn you when the device reaches its end of life. Secondly, the X-Sense smoke detector has a light so you can see in the darkness. Finally, it includes an escape light that will illuminate the path of your safe evacuation during a fire or other emergency situation.

The detector has a 10-year battery, so you don’t have to worry about changing the battery often. Additionally, the X-sense Smoke & Carbon Monoxide Detector with Voice Warning is our top pick because of its features. The alarm will sound and provide a voice warning if there is an emergency, which can help keep your family safe.

Notable Features

  • Photoelectric and electrochemical technologies
  • Built-in LCD with multiple indicators
  • Battery status, notification of faults
  • Alert when the device reaches its end of life


  • The X-Sense Smoke and Carbon Monoxide Detector is affordable, battery-powered and simple to install.
  • The unit automatically activates when it’s twisted into the mount.
  • This detector provides specific information on the location or nature of problems through voice alerts, which makes it an ideal choice for families.
  • It can be interconnected


  • The X-Sense Smoke and Carbon Monoxide Detector is slightly expensive by a few negligible cents.

Kidde Smoke and Carbon Monoxide Detector Overview

Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert

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The Kidde 10-Year Worry-Free alarm is easy to install and alerts your family when elevated carbon monoxide levels are detected in your home. It is powered by a 10-Year sealed-in, non-replaceable long-life lithium battery.

No hardwire installation is required and no need to change the batteries over the 10-year life of the alarm. Simply replace the entire unit after 10 years.

Smoke detectors are one of the most important devices to have in your home in order to protect your family from a fire. Kidde Smoke Carbon monoxide detector utilizes an electrochemical sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected.

It also has a voice warning system that will tell you the type of danger that has been detected and where it is located in your home.

Notable Features

  • 10-Year sealed-in, non-replaceable long-life lithium battery
  • 10-year life of the alarm
  • No hardwire installation required
  • Electrochemical sensor for detecting fire hazards
  • 85 db alarm when a hazard is detected


  • The Kiddie Smoke and Carbon Monoxide Detector is affordable, easy to install, and has 10-year battery life. It can connect up to 18 detectors with the same mount.
  • The Kiddie Smoke and Carbon Monoxide Detector feature an eight-minute hush setting that spares you some aggravation (when it’s activated) as well as a phone alert to provide reassurance when you’re away from home or not at home when the alarm sounds.


  • The Kiddie Smoke and Carbon Monoxide Detector is a basic device that has no way to change the battery without deactivating it.
  • It is not as sleek or stylish as other models, but reviewers say it’s still durable and reliable enough for their needs.

What is the Main Difference Between X-Sense Smoke and CO Detector and Kiddie CO Detector?

The X-Sense Smoke and CO Detector is the best combination smoke and carbon monoxide alarm on the market. It has a better alarm system with a verbal warning of the threat and smart LCD display than The Kidde Combination CO/Smoke Alarm.

A photoelectric sensor helps with the early detection of smoldering fires and smoke, while an electrochemical sensor detects CO levels. The X-Sense Smoke and CO Detector also have verbal communication features that the kiddie CO Detector lacks.

What To Consider Before In The Best Combination Smoke and Carbon Monoxide Detector or Fire Alarm

Digital Display of CO amount

When it comes to carbon monoxide detectors, one of the most important features is a digital display of the amount of CO present. This allows you to monitor levels and take action if necessary. The X-sense CO sensor is very sensitive, set to sound its 85dB alarm when levels remain at 41ppm for 60 minutes.


When it comes to safety, you don’t want to take any chances. That’s why it’s important to have a smoke detector that is UL-certified. The UL label is the third-party seal of approval, meaning you can trust that your smoke detector will do its job.

Underwriter Laboratories sets standards to which manufacturers must adhere when making products for use in buildings and homes. The UL 217 is the standard code for single-station smoke detectors and multiple-station smoke alarms with a common alarm signal. A UL-certified product must go through a series of tests to receive its stamp.

The items we tested have the UL 217 and UL 2034 certifications, meaning they meet specific requirements set by Underwriter Laboratories. Some smoke alarms, including the X-sense Smoke Detector and Carbon Monoxide Detector and Kidde Battery-Operated Smoke Alarm, meet UL requirements.

Many smoke alarms, including these three companies, meet UL requirements; however, be sure to check before purchasing as some models may not be certified

Warning for alarm replacement

When it’s time to replace your smoke alarm, it’s important to choose the right one. There are many factors you should consider when making your decision.

The X-Sense is a combination smoke and carbon monoxide detector with a 10-year battery. It has both a photoelectric smoke sensor and an electrochemical CO sensor, which are highly sensitive. It gives a warning alarm for replacement when it outlives its lifespan.

One main feature of it is that it’s easy to install since it comes with detailed instructions on how to do so, as well as pre-drilled holes for easy mounting onto walls or ceilings without any tools needed.

The most important factor in choosing a replacement smoke alarm may be its ease of installation. Other features you may want your new alarm to have to include: long battery life, low noise level, safety concerns addressed, and value for money.

Carbon Monoxide Detection

When it comes to carbon monoxide detection, there are two types of detectors: those that detect high levels of carbon monoxide and those that offer dual protection.

Dual-protection devices usually include photoelectric and ionization sensors, which give them the ability to detect both fire and carbon monoxide without any type of tampering.

Both X-sense and Kiddie Smoke alarm system is a combination of smoke and carbon monoxide detection.

It has both photoelectric and ionization sensors, which give it the ability to detect both fire and carbon monoxide without any type of tampering.

The Smoke and Carbon Monoxide Detector includes both fire alarms and carbon monoxide detectors. The unit has a battery backup in case the power grid goes down. If you’re looking for a product with two types of protection, this is a great option.


The most common smoke detector lifespan is 10 years. After that time, they should be replaced as they may not function properly in the event of a fire. Smoke detectors can have a lifespan of between five and ten years.

It’s important to note that both types of smoke detectors – ionization and photoelectric – should be replaced every 10 years for maximum safety.

Backup Power

They both run on a battery with 10 years of battery life.

Sensors to Monitor the Surrounding Conditions

There are many different sensors to monitor the surrounding conditions. Some of the most popular ones include:

Smoke detectors- these use a light-sensitive sensor and an LED light to detect smoke. The photoelectric sensor can’t pick up the LED light that’s emitted unless there’s smoke in the air, which causes the light to reflect and be picked up by the device’s sensor, triggering an alarm.

Carbon monoxide detectors – these work similarly to smoke detectors, but they detect carbon monoxide gas instead of smoke. Carbon monoxide is a poisonous gas that can kill you if you’re exposed to it for too long, so it’s important to have a carbon monoxide detector in your home.

Temperature sensors – temperature sensors can be used to measure both indoor and outdoor temperatures. This information can be useful for things like deciding what clothes to wear or whether or not you should water your plants.

Humidity sensors – humidity sensors measure how much moisture is in the air. This information can be helpful for things like knowing when it’s time to dehumidify your home or figuring out what type of clothing you should pack for your vacation

X-Sense vs Kidde: Which Smoke & Carbon Monoxide Alarm is Best for You?

It’s important to have a smoke detector and carbon monoxide alarm in your home. But with all the different types of detectors on the market, it can be hard to know which one is best for you.

Both X-sense and Kidde make high-quality alarms, but X-sense has some advantages over Kidde. For example, their PC plastic housing is more heat resistant and corrosion resistant than Kidde’s aluminum housing. The internal stainless steel meshing also prevents false alarms from insects.

Additionally, the Lithium battery option for both brands has a greater range in size spectrum than First Alert Hardwired Smoke Alarm. This makes them ideal for smaller spaces or places where wiring isn’t feasible.

X-Sense also offers a 2-in1 sensor that monitors both smoke and carbon monoxide levels simultaneously – a great feature for families with kids or homes that already have a Carbon Monoxide detector installed.

Kidde also has some great features, like their voice alerts which can be helpful for those who are hard of hearing. They also have a CO detector that uses the same technology to detect leaks as the X-Sense.

So, both brands have their pros and cons, but in general, X-sense is a slightly better choice. We did a thorough review of the X-Sense Smoke and Carbon Monoxide Detector, kindly check it out by click the link.


Is X-Sense a reliable brand?

There are many different brands of smoke detectors on the market, and it can be difficult to determine which one is the most reliable. Some factors to consider include:

Battery operated smoke detectors may run out of power, but a hardwired alarm is always running. Smoke detectors can detect different types of fires using ionization and photoelectric technology, with some models connecting to other units for an additional safety measure.

X-Sense is a brand that has been trusted by consumers for many years. All X-sense smoke detectors use photoelectric technology, which is the most accurate way to detect fires.

Are Kidde and First Alert the same company?

Kidde and First Alert are two of the most well-known fire safety product manufacturers, so, they are not from the same company.

What are longest-lasting smoke detectors?

There are many smoke detectors on the market, but not all of them have long-lasting batteries. The X-Sense SC01 is a carbon monoxide detector that doubles as a smoke alarm and it has a built-in lithium battery, which lasts up to 10 years.

Additionally, the sensor will detect motion within two sprays of the aerosol and it has 85dB sensitivity. Another great feature of this smoke alarm is that it comes with anchors to attach easily.

It was easy to install and includes resealable plastic bags for mounting on ceilings and walls. The detector also has a high degree of accuracy and reliability, making it the best option for a carbon monoxide detector.

Are X-Sense smoke detectors any good?

Yes, X-Sense smoke detectors are very good. They come as a set of three, six, or twelve separate smoke detectors with a range of more than 820 feet each. They are light and small enough to fit in your pocket and have an 85 dB sound level with a battery that lasts up to 10 years.

The light on the detector is easy to see, as it reflects off of its side-mounted position onto the ceiling to increase visibility. Each unit responds to smoke within two sprays.

Do all Kidde smoke alarms use the same mounting bracket?

No, Kidde smoke alarms do not use the same mounting bracket. Kidde offers a variety of different mounting brackets to choose from, depending on the model and type of smoke alarm.

What is better, hardwired or battery smoke detectors?

There is no clear-cut answer when it comes to hardwired or battery-operated smoke detectors. However, there are a few factors to consider:

The hardwired smoke detector is more reliable because it has a power source. A battery-powered smoke detector can be installed without the need to run wires and is easier for some people as they do not have to worry about wiring or installing new batteries.

Smart detectors provide extra awareness for those who are home when the issue occurs but are not necessarily better in comparison with a hardwired system tied into central monitoring service. For example, the Nest Protect is a smart smoke and carbon monoxide detector that can be either hardwired or battery powered. It also has multiple alert types and a comprehensive experience, unlike cheaper alternatives.

This smart product detects emergencies for you when you’re not home, with a range of useful features beyond smoke and CO detection, including automatic self-testing.



I am a Mechanical Engineer with years of experience working in the Security Industry. Aside from giving out useful information here, my hobbies include researching, listening to classical songs. In my spare time, I learn python programming language.