I Tested And Reviewed 10 Best Hardwired Smoke And Carbon Monoxide Detector (2023)

Kidde Smoke Detectors – Reliable and Easy to Install

I recently replaced my old Kidde Smoke detectors with the new ones, and although I had to change the wiring to fit the new detectors, the installation process was easy. All I had to do was twist the wires and cover them with our existing wire covers. I replaced two detectors, and I was pleased to find that they can talk to each other when tested.

One concern I have is whether the batteries will last for the promised 10 years. My old detectors, which used 9-volt batteries, lasted that long, but these new ones use AA batteries. Only time will tell if they live up to their battery life claims.

Unfortunately, I've had some issues with the alarm beeping frequently. I initially replaced the batteries, but a few weeks later, the beeping started again. This was quite bothersome, especially since my dog gets scared by the sound. I had to go through the hassle of replacing the batteries again, but I found that the tab to open the battery compartment needs improvement. It was difficult to move, and I had to pull on the wires to unplug them in order to access the batteries. My old detector had a simpler design, and I'm not sure why the company decided to change it. I suspect that my device may be defective, as I've never had so many problems with a smoke alarm before.

On a positive note, I decided to install one of these detectors in my work truck. I often drive trucks that emit exhaust fumes, and I wanted to be able to detect any carbon monoxide. Since this detector can run on batteries, I thought it would be suitable for my truck. The installation was straightforward, and I hardly notice the detector's presence. The green light on it still blinks, indicating that it's functioning properly. Testing the batteries weekly has been effective, as they are still going strong after a month. This detector may just save me one day, and I'm grateful to have it in my truck for added safety.

In terms of build quality, the alarm is made of durable, easy-to-clean plastic and has a pleasing appearance. The mounting plate is sturdy and has slots for easy installation on a standard outlet box. The twist-on alarm is securely retained, ensuring it stays in place.

The alarm itself is loud and works effectively. Performing the test is simple and hassle-free.

It's important to note that all smoke detectors should be connected to dedicated electrical circuits to prevent nuisance alarms. For the interconnect feature to work, a wire with a resistance of less than 10 ohms needs to be used to connect all the "red" wires. This wire should be in the same cable or raceway as the 120V AC power.

The package includes batteries and a red dust cover, but mounting screws are not provided. According to UL standards, the detector should be mounted to an outlet using round head (not tapered) 6-32 screws.

One of the benefits of this detector is its combined CO and smoke detection capabilities. Prior to installing it, I had a bulky CO detector on my wall outlet. By updating my smoke detector with this model, I was able to eliminate the unsightly CO detector while still having reliable CO detection. The detector has a discreet standard white appearance that blends seamlessly with its surroundings.

The Kidde smoke alarm and carbon monoxide detector is a reliable and efficient choice for keeping your home safe. One of the standout features of this alarm is its ability to communicate with you. It will audibly notify you if it detects smoke, carbon monoxide, or if the battery is low. This added level of communication provides peace of mind and ensures that you are always aware of any potential dangers in your home.

The installation process is relatively easy, requiring only two screws and connection to your house wiring. It can easily replace a hardwired smoke detector without much hassle. The smoke alarm comes with a convenient connector that allows you to wire it into your house wiring and then simply plug it into the detector. This straightforward installation process makes it accessible for anyone to set up.

Kidde has a strong reputation in the industry, along with First Alert, as a front runner for smoke alarms. This particular model was purchased as a replacement for a previous Kidde CO/Smoke alarm. Although the connector for the hardwired installation was different, it was not difficult to replace the wire harness as the necessary components were included. The main retention plate between the two models looks identical, providing a sense of familiarity and ease of use.

In terms of design, the new Kidde alarm has a noticeably different appearance compared to the previous model. The battery is now located on the backside, rather than the outside, and the sensor duct is more visible. This design change may contribute to more accurate reporting for carbon monoxide and faster response time for smoke detection. While this is preferable in areas without cooking, it may pose a slight issue if positioned closer to the kitchen. However, overall, the new design is more visually appealing and adds a touch of modernity to your home.

While the reviewer acknowledges that the previous Kidde alarm was still in working condition, they opted to upgrade to the newer model due to its improved design. The previous alarm was installed by a different installer and was more generic in nature. The website indicates that the new Kidde design is the recommended choice, suggesting that the newer model is functionally similar to the older one.

I recently purchased three smoke detectors and one combination smoke detector for my home, and I must say, I am very impressed. These detectors were incredibly easy to install, and the alarm is loud enough to startle you awake in case of a fire. With a 10-year lifespan and an affordable price, these detectors are definitely a great value.

One of the features that stood out to me was the test/reset button design. Unlike other detectors that require you to climb on a chair or ladder to test or silence them, these detectors have a large button on the face that can easily be tapped with a broomstick. This thoughtful design makes testing and silencing the detectors a breeze.

However, I did encounter some difficulties when it came to mounting the detectors. If you are replacing an existing hard-wired detector, the plate provided may not be compatible with recessed electrical boxes. This means that you won't be able to take advantage of your existing hardware, and mounting the detectors around an existing box may be troublesome. Despite this issue, I still managed to install the detectors securely, although I had to rely on just two of the three mounting screws for two of the detectors.

I ordered a pack of five of these smoke detectors for my two-story home, and I am very pleased with my purchase. I was able to place one in each bedroom, one in the upstairs hallway, and one just outside the kitchen on the ground floor. The detectors came with everything I needed for installation, including the mounting plate, hardware, and instructions.

Installing the detectors was a breeze and only took a few minutes each. I used a cordless drill and a screwdriver, and I didn't even need to use the gypsum board anchors that were included. The mounting plate can be mounted vertically or horizontally, and I chose to mount them vertically. Once the plate is securely in place, the detector can be easily locked into place.

After installation, I noticed a small flashing bar on the front of the detector, which serves as a visual indication that the unit is functional. The light is bright enough to be seen during the day but not intrusive at night. There is also a test/silence button on the front, which I used to ensure that the detectors were working properly. The alarm sound is loud enough to wake a sleeping person and provides a sense of security.

One suggestion I have for the manufacturer is to include an install date sticker so that users can keep track of when the 10-year lifespan of the detector is coming to an end. However, I easily solved this issue by creating my own sticker using a label maker.

These detectors require zero maintenance, as they do not have any batteries to change. They should not require any interventions until they need to be replaced after 10 years, which aligns with the recommended lifespan of smoke detectors. I have had these detectors installed for a couple of months now, and I have not experienced any issues with them.

Considering their reasonable cost per unit, I would highly recommend these smoke detectors to friends and family. They provide peace of mind and ensure the safety of your home and loved ones.

The Kidde Smoke and Carbon Monoxide Detector is a reliable and efficient unit that offers peace of mind when it comes to fire and carbon monoxide safety. While it is important to note that this particular unit operates on 110V and doesn't have a ten-year battery like some other Kidde products, it does come with two backup AA batteries for testing purposes.

One of the standout features of this detector is its ability to audibly communicate with the user. When tested, it emits three loud beeps followed by a female voice stating "Fire" and later "Warning, carbon monoxide," accompanied by three more loud beeps. The warning sound, however, may not be exceptionally loud, so it could be beneficial for Kidde to consider recording a more attention-grabbing voice or sound to ensure maximum effectiveness.

Installation of the Kidde Smoke and Carbon Monoxide Detector is relatively easy, requiring only two screws and connection to the house wiring. It is a simple replacement for existing hardwired smoke detectors. Additionally, the unit comes with a convenient connector that can be easily wired into the house wiring, making the process even more straightforward. It is worth mentioning that this specific unit has not been tested for integration with other Kidde products.

Kidde has a well-established reputation in the market for smoke alarms and is often compared to First Alert. This particular unit was purchased as a replacement for a previous Kidde CO/Smoke alarm. While there was a slight difference in the connector for the hardwired install portion, it was a relatively easy fix with the included wire harness and the use of Wago connectors. The overall design of the unit has also been improved, with the battery now located on the back side for easier access and a more visible sensor duct for improved accuracy and faster response time.

Although the previous Kidde alarm was still functional, the owner opted to replace it with this newer model due to its improved design. It is important to note that both units are functionally similar, and the decision to upgrade was based on personal preference and aesthetics.

I recently purchased the Kidde Series smoke and carbon monoxide detectors, and I must say, they have exceeded my expectations. I was specifically looking for a system that could interconnect with other modules, had both AC and battery models, offered combo smoke/CO and smoke-only models in both power variants, and could interface with my SmartThings alarm system for smart notifications.

After extensive research, I found that the Kidde Series was the only system that checked all these boxes. While there is another brand that offers the SmartThings integration I was looking for, it did not meet the other requirements. However, with the Kidde Series, I found that factors 1-3 were already present out of the box, and achieving the SmartThings integration was surprisingly easy with some additional parts.

I purchased multiple AC combo, AC smoke, DC combo, and DC smoke detectors, and I was pleased to find that they all interconnected wirelessly. When one detector is triggered, they all go off, providing comprehensive coverage for my home.

As for the SmartThings integration, I followed a guide I found on the SmartThings community, titled "Integrating Kidde Smoke/CO sensors into SmartThings." The additional parts needed were a Kidde SM120X Relay, a Kidde CO120X Relay, a junction box, and a pair of EcoLink Zwave Door/Window sensors, all conveniently available on Amazon. The installation process was simple, and no wiring between modules was required. The only prerequisite was having at least one P4010AC* unit to connect the relay modules.

I watched a video demonstrating the test function being activated on one module, with the status showing on my SmartThings screen. From there, I can receive notifications on my phone if I'm not home or set up other smart actions, such as turning on the lights, in the event of an alarm.

Thanks to the Kidde Series, my home has transformed from a mishmash of outdated, standalone smoke detectors to a smart, interconnected system that meets today's standards. The project of including the SmartThings integration was not only functional but also enjoyable. However, even without it, creating an interconnected network of detectors is straightforward to achieve.

To address some common questions, I would like to clarify a few things. The AC modules with battery backup will not operate for 10 years without power being applied. They are designed to maintain operation for typical power outage situations, with an estimated operation without AC power of about a week. If you cannot provide AC power, I recommend opting for the DC modules, which are guaranteed to last 10 years.

In terms of interconnecting with other Kidde alarms, only the AC modules can be connected via hard-wire run. They cannot communicate wirelessly with modules that are not part of the P4010* series. However, the battery models will become part of the network as long as there is an AC P4010* unit physically connected to those non-P4010* series models.

I am extremely impressed with the 10-year battery life and easy installation of this smoke and carbon monoxide detector. It is evident that the manufacturer has taken the time to understand the importance of differentiating between photoelectric and ion fire alarms. As a customer who values the safety of my family, I conducted thorough research before making this purchase, and I can confidently say that this unit is one of the best on the market.

The dual functionality of detecting both smoke and carbon monoxide is a great feature. The preloaded battery that is designed to last for 10 years is a convenient and reassuring aspect of this detector. It is important to regularly test the unit using the central button, ensuring its functionality and providing peace of mind. Additionally, this button serves as a stop button when accidental alarms are triggered, such as burning toast.

The inclusion of all the necessary mounting hardware, screws, plugs, and mounting plate is a thoughtful touch. It allows for easy installation, and in my case, it seamlessly replaced my old detector without any unsightly marks requiring repainting. While I cannot personally test the effectiveness of the unit in a real fire situation, I have relied on other reviews and feedback from friends who have attested to its sensitivity and accuracy. The materials used in its construction claim to be more sensitive and accurate, minimizing false alarms even when cooking bacon.

Considering that the house I am installing this detector in primarily operates on electricity, I appreciate the inclusion of the carbon dioxide alarm. It provides an extra layer of safety and peace of mind. Overall, I would confidently rate this product 5 stars for its exceptional quality and performance.

I recently purchased this smoke and carbon monoxide detector while painting my sister's home. The quality of this detector surpasses other brands I have previously used. What impressed me the most was that the manufacturing date indicated that the detector was only 7 weeks old upon arrival. This attention to detail is crucial, as you wouldn't want to buy a detector with an outdated battery, especially when it claims to last for 10 years. Kudos to the manufacturer and Amazon for implementing a just-in-time manufacturing and distribution method for this product.

In addition to various test approvals, this detector also holds Germany's TUV testing and certification. This further assures me of its quality and reliability. Given that my sister's home has gas heat, it is essential to have a reliable smoke and carbon monoxide detector, and this product fits the bill perfectly.

I recently had some issues with the hard-wired CO and smoke detectors in my home and decided to replace them. After conducting thorough online research, I came across Kidde (pronounced kid-ah) and decided to give them a call. The customer service representative I spoke to was incredibly pleasant and provided me with a wealth of information about their various units.

One thing I appreciated about Kidde detectors is that they seemed to fit my requirements perfectly. However, since my existing detectors were from First Alert, I needed adapters to ensure a seamless installation without rewiring. Unfortunately, I couldn't find these adapters on Amazon. The only option available was a package of two, with one of each type, which meant I had to discard one. Moreover, there was a two-week waiting period for these adapters. This was a minor setback, but price-wise, Amazon offered the best deal for the detectors, especially since I needed multiple CO and smoke detectors (two CO detectors and eight smoke detectors).

The transition from my old detectors to the Kidde detectors was quick and straightforward. One important thing I learned about CO detectors is that they have a limited lifespan of around 4-5 years and need to be replaced. Since my previous detectors were 6 years old, it explained why I had to change the backup batteries almost monthly. In fact, I had one detector that kept chirping even with a new battery, which prompted me to replace it in the first place. I particularly like the new Kidde CO detectors because they come with a digital display, which shows the CO level during an alarm, and also indicates when the battery needs to be replaced.

On the other hand, I have been using this particular CO detector, or at least the same model number, for a decade. The first one I installed worked flawlessly for around 9 years without any false alarms. I can confidently say that it did its job since I'm still alive! Surprisingly, I never had to change the 9V battery throughout that time. Eventually, it started beeping to indicate that it had expired, so I replaced it with the same model. The quality of the detector seems consistent over the years, and I haven't encountered any issues. I would highly recommend this model to anyone, as long as they have an electrical junction box for mounting and a reliable power source.

I recently purchased this smoke alarm unit as a replacement for one that was not functioning in my newly purchased home. The installation process was incredibly easy and hassle-free. I simply removed the old unit, plugged in the new one, and twisted it into place using the existing base that was already mounted on the ceiling. No wire splicing or complicated procedures were required.

Upon researching the issue, I discovered that the three chirps emitted by the faulty smoke alarm indicated that it was indeed malfunctioning. The date stamped on the old unit confirmed that it was well past its expiration date. I promptly ordered this replacement unit, and it arrived promptly and as described.

Since installing the new smoke alarm, I have experienced no more chirping and it has been functioning flawlessly. The battery backup feature provides an extra layer of safety and peace of mind. The alarm itself appears to be of high quality and has been performing its job effectively.

While the price may be considered a bit steep compared to some competitors, one must consider the value of their own safety and well-being. It is always worth investing in a reliable and trustworthy smoke alarm system.

The USI smoke and carbon monoxide detectors are a great addition to any home. They are easy to install and provide peace of mind with their quality and reliability.

One of the standout features of these detectors is the 10-year backup battery. This ensures that the detectors will continue to function even in the event of a power outage. This is especially important for the safety of your family, as smoke and carbon monoxide can be life-threatening.

The installation process is simple and straightforward. With just a few wire nuts and a new mounting plate, you can easily replace your old detectors with the USI models. The dimensions of the detectors also make it easy to replace them without having to repaint your walls.

The smoke detection technology used in these detectors is highly advanced, reducing the number of nuisance alarms. This means that you won't have to worry about false alarms waking you up in the middle of the night. The green LED light on the unit lets you know that it is active and functioning properly.

While the device itself is top-notch, there have been some concerns with the design of the mount. It can be difficult to attach the unit to the mount, as the twist and tabs are tough to make catch. However, by slightly adjusting the screws on the mount, this issue can be resolved.

I recently had to replace my old smoke/CO detector after 8 years of use. I was surprised to find out that the detector needed to be replaced after only 8 years, as I had thought it would last for 10 years. The old detector started chirping due to a low battery, and even after replacing the battery, it continued to chirp with 5 beeps every minute. Upon checking the manufacturing date on the back of the detector, I noticed that it was from 2014, and there was a warning indicating that 5 beeps meant it needed to be replaced.

I decided to look for a new combo detector with a 10-year lithium battery as a replacement. This seemed like the best option, as the battery would last as long as the detector itself. Not only would this save me from the hassle of replacing the battery every 6 months, but it would also save me money, as the battery replacements were costing me $8 for a pack of 2. Additionally, the cost of the unit with the 10-year battery was only $10 more than the one with the 6-month battery backup.

Installing the new unit was a breeze, as it had the same size as my old detector. I was able to use the old bracket and the wire connector plugged in perfectly into the slot in the new unit. This is why I chose the same brand, as it ensured a perfect replacement fit. The only difficulty I encountered was with the tab that needed to be pulled out to activate the battery. It was quite hard to pull out, so I had to open the battery compartment, which was pin-locked, and pull out the tab completely.

Based on my experience, I would highly recommend choosing the same brand when replacing your combo detector to ensure compatibility and easy installation. This specific unit with a 10-year battery backup provides great peace of mind. I hope it lives up to its promised 10-year lifespan, as this would result in significant battery savings over the next decade. In fact, I plan on purchasing three more units of this model to replace my other detectors when I hear low battery beeps from them.

This was my first time trying a detector with an included battery, and I must say it has been a convenient experience. While I understand that there is an extra cost associated with not having to change out batteries, this model has proven to be reliable and has lasted for its rated life. I am tired of having to change out the battery every year or in the early hours of the morning when the batteries seem to die.