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Model # 21010625

Internet # 205132306

Store SKU # 1000046182

2 - in-1 Battery Operated Wireless-Interconnected Combination Smoke, Fire & Carbon Monoxide Alarm

This item has been discontinued.
The Home Depot no longer carries this specific product.

$49.97 / each

  • 2 in1 smoke and carbon monoxide alarm uses 2 AA batteries.
  • Wireless control allows for remote access from anywhere.
  • Works with the Wink home automation network.


Model # 21010625

Internet # 205132306

Store SKU # 1000046182

Kidde 2 in1 Wireless Combination Smoke, Fire and Carbon Monoxide Alarm operates Wireless-interconnect. If one alarm sounds, all interconnected units will sound, alerting you to a potential threat anywhere in your home. The Kidde Wireless Combo Alarm senses smoke, fire and CO alerting you with a voice warning and will alert you with notifications via the WINK APP to connected devices. This Wireless Combo can Connect to the WINK Hub, as part of a connected home environment if an alarm sounds, it will send you a message on your smart phone, tablet or PC alerting you to a potential threat using the WINK APP. The unit is powered by 3 AA batteries.

  • Combination fire, smoke and carbon monoxide alarm with voice and text alerts
  • Wireless interconnect; when one alarm sounds, they all sound, alerting you to a potential threat anywhere in your home
  • Voice and Text Warning; If an alarm sounds, alarm will send you a message on your smart phone, tablet or PC alerting you to a potential threat via the WINK APP
  • Voice warning announces "FIRE, FIRE" or "warning, carbon monoxide"
  • Text warning requires wink hub and wink app
  • Compatiable with “wink" hub, as part of a connected home environment; hub and app not required
  • Not compatible with other wireless interconnected alarms

  • This item is compatible with the Wink home automation system and can connect to several other items to control and customize your home with automated rules, shortcuts, & more, all with no monthly fees

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Alarm Sensor Type 
Alarm Type 
Carbon Monoxide,Smoke 
Alarm/Detector Features 
Hush Feature,Interconnected,Voice Alert,Wi-Fi Enabled 
Commercial / Residential 
Connected Home Protocol 
Connector/Contact Type 
Power Source 
Smart Device Enabled 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 


Rated 4.2 out of 5 by 38 reviewers.
Rated 5.0 out of 5.0 by Very Easy to Install I installed 2 of these alarms in my home. 1 in each of my kids bedrooms. before you start you need to pair any alarms before you install them. This is just so if 1 alarm goes off, they all go off. you just set the code pad found in the battery compartment and then they are set and ready to use. these also have voice notifications as well. to install you just need to insert a single drywall screw for the mount and just twist the alarm into place. quick and easy. these have been in place for over a month and I have not had to replace the batteries. requires 3 AA batteries which are included. October 21, 2014
Rated 4.0 out of 5.0 by Great peace of mind. Easy to set up! Really like these. Took no time at all to set up. If you have a multi story home these give you peace of mind. I have a hard time waking up and I've always been concerned about what would happen if there was a fire or excess CO in the basement while I was sleeping on the 2nd floor. Especially since I tend to close the door to the basement as well as my basement door. Each unit can detect smoke or carbon monoxide. If there's a fire you'll have both so the voice prompt will only say "Fire". Kidde has a long history in this field. I'm not the type of guy that cares who's name is on my jeans but when it comes to things that can save my life, brands matter to me. Now I have one of these in the 2nd floor hallway outside the bedrooms and one in the basement just outside the utility room. If something triggers the alarm in the basement, either smoke or carbon monoxide, the alarm in the 2nd floor hallway will also start making noise. In addition to the piercing alarm sound, a voice tells you if the alert is for fire or carbon monoxide. After installing the detectors I could tell right away that the communication was working fine after pressing the test button. From the basement I was able to faintly hear the 2nd floor alarm and vice versa. There's a slight delay in the other alarm after the first one triggers so you can hear the alarm in the distance during the pauses of the triggered alarm. I was very impressed at how easy it was to set up. Read the instructions for proper placement then set the code using the dip switches in the battery compartment. Using a pen or pencil just come up with some random code on one of the units and then set up the same code on all the others. Don't leave the default code in case there's someone else nearby using the same Kidde wireless smoke detectors. Then just install the included 3 AA batteries in each unit and test them one by one. All the alarms should sound when you trigger one and you can have up to 12 working together. Very easy to install too. One small plastic mounting stud gets attached to your ceiling (or wall) with a single screw that is included in the packaging, along with a plastic drywall anchor. Then just slide the detector on the post and rotate to a visually pleasant orientation. I find it easier than the standard 2 screw mounts where you try and blindly insert one screw then the other. Batteries must be installed or the detector won't mount to the wall. It would have been nice if the voice alert could tell you which detector had tripped but for small installations it should be easy to figure out. If I am woken in the middle of the night by the fire alarm and pass the one in the 2nd floor hallway without seeing smoke I can safely assume it's in the basement. Really, you shouldn't care where the alarm is coming from. Your main concern should be getting out. I'll eventually get one to replace the CO/Smoke detector on the first floor two but my main concern was having the two most distant locations connected. These detectors can only work with the same model of wireless Smoke and CO detectors. They won't connect with other wireless alarms from Kidde. This is only an issue if you already have other wireless detectors installed that you don't want to replace. For me it wasn't an issue. Can connect with a Wink home automation HUB to send you alerts remotely but I don't have one to test it out. August 25, 2014
Rated 5.0 out of 5.0 by Perfect safety system for the whole house Among all other Kidde's fire alarms, this one has the best and easiest installation mechanism. A major plus of this alarm is that it detects both fire and carbon mono oxide, Second plus is that it has a voice alarm along with beeps that clearly identifies the threat. The third and most important plus is that all these alarms are interconnected wireless . It creates such a ruckus that everyone will be up and running out in seconds. I am very happy and feel a lot safer with these alarms. Although would have preferred 9 volts batteries as they last longer instead of 3 AA batteries which come included with the alarms. It can also be used with Wink Connected Home Hub. August 10, 2014
Rated 4.0 out of 5.0 by Nice Device. Connecting numbers of this devices are great and effective. I like it how it looks really nice and easy to setup. But I am disappointed with connection with Wink device. It disconnect all the time, I think it is fault of Wink hub. Not with this device. I would not recommend if you are looking to connect it to Wink hub. This concept is great, but unreliable and Wink hub does not have way to individually connect to hub even you have multiple of this (more than 1). December 10, 2014
Rated 3.0 out of 5.0 by Not as good as the Home Hero product it replaced The original Home Hero product (of which I have five) has a quite loud male voice for the speech announcements. They were purchased with the aim of awakening and alerting two elderly persons. This they would have accomplished. The new units, under the Kidde brand, use a female voice not as loud in volume as the previous male voice, and a weaker (to me) alarm beep. I'm a relatively light sleeper but, I'm not certain this would awaken even me. I have reservations that it would even awaken my four-year-old cats. One other item: the old Home Hero units were supplied with a printed, and easily read, paper manual. The new Kidde product seems to not include that. The HH units specifically noted in their manuals that seven years from the date of first power-up, the units would begin issuing a specific beep pattern. This indicated that the unit would no longer sense carbon monoxide and must be replaced. The new Kidde unit sports a ten-year warranty decal on the face of the packaging, though nowhere on the unit is the actual active CO sensor life indicated. The date of manufacture is affixed to the back of the unit; I elected to figure seven years from the date I installed the AA cells.. The unit does work and correctly signals the other (HH) units in the house. I'm recommending the product only because it seems to be the only direct replacement for the Home Hero product. With the changes in the announcement and alert systems, I don't feel I can honestly raise my ratings above the levels I entered. March 8, 2015
Rated 1.0 out of 5.0 by Failed after 4 months, doesn't stay paired to Wink, and you can only pair one At twice the cost of an ordinary smoke + CO detector (and half that of a Nest Protect), I was expecting more from this. I initially purchased two, intending to pair them both to Wink. I found that due to the nature of the interconnect, only one could be paired. Additionally, even that one would randomly drop off of the Wink network and need to constantly be re-added. This is probably a Wink issue rather than an issue with the alarm itself, but the point still stands that your connection to the Wink network will likely be unreliable. Staying connected to that network is a critical feature that could spare you huge losses if your house ignites while you're not home! On top of all that, both smoke alarms started to chirp once every 30 seconds after a few months, indicating an alarm malfunction - the first, about a month after I purchased it (I returned it to the store) and the second 4 months after I purchased it (outside of the store's return period, and I'm having a heck of a time getting a refund from Kidde). Changing the batteries does nothing, the alarms have genuinely failed prematurely. I can't see a niche for this product given the limitations and quality issues: if you don't need a smart alarm, go with a cheaper model that will serve you just as well. And most people who are willing to pay twice as much for a smart alarm will probably be willing to pay twice as much again for a Nest Protect. Also, there's something I see as a design flaw: the green blinky light that goes off every minute is bright enough that putting one of these in a bedroom (you know, where fire alarms are supposed to go) might be a bad idea. January 14, 2015
Rated 2.0 out of 5.0 by Won't pair with Wink hub This device would not successfully pair with the Wink hub which was my intend application. I called Wink tech support and they had recently received reports similar to mine. The tech claimed it was an issue with the app. They said they would get back to me. If they can find a working solution, the rating will increase. July 10, 2014
Rated 5.0 out of 5.0 by Great Product This product is perfect when protecting your Family and Rental properties. With its Voice warning and connection to all installed Kidde Smoke and CO detection it is perfect for any Home and Rental Home. In combination with the Wink Hub Home controller it gives an extra peace of mind to the home owner. This is a MUST-HAVE for any parent or dwelling March 31, 2015
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