Get peace of mind and double the safety with a smoke and CO detector that protects against both fire and carbon monoxide—backed by a monitoring team that’s always ready to act in an emergency, day or night.
Smoke & CO Detector Specs
COLOR
White
SIZE
4.96″ø x 2.64″ Tall
FREQUENCY
345 MHz
SIREN LEVEL
85 dB
MOUNTING
Screws and bracket
BATTERY
2 CR123A batteries
BATTERY LIFE
5 years
PRODUCT PROTECTION PLAN
The Vivint Protection Plan* (VPP) offers ongoing support and coverage when you invest in a Vivint system.
SKU
VS-SMKCO2-345
GTIN
198715291841
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and call us now 844.481.8630
This fast and accurate CO and smoke detector identifies threats early, giving you time to act and keep home and family safe.
Your home and family are safer with a detector that uses photoelectric sensors to identify excessive heat before you even smell smoke.
A built-in wireless transmitter communicates directly with your Smart Hub and Vivint app, alerting first responders if necessary.
This detector works with your Vivint smart home to shut down your HVAC system in the event of fire to mitigate the spread of flames.
The battery-operated combination CO and smoke detector comes with a 5-year battery plus backup, so it’s always on.
If your detector is triggered, our support team is notified instantly. They’ll contact first responders if you can’t be reached.
See how Vivint compares to the competition.
| Feature |
Logo
|
ADT | SimpliSafe | Ring | Brinks |
|---|---|---|---|---|---|
| 24/7 security monitoring with 2-way talk through panel | Yes | No | No | No | Yes |
| Cameras use vision based AI and automated light/sound to deter crime | Yes | No | No | No | Yes |
| Doorbell detects and protects packages | Yes | No | No | No | No |
| Professional installation from experts on staff | Yes | Yes | Yes | Yes | Yes |
| Products designed/developed in-house | Yes | No | Yes | Yes | No |
| 60 month interest-free financing | Yes | Yes | No | No | No |
(As of September 2026)
Absolutely. With a combination smoke and carbon monoxide detector you get double protection with a device that identifies life-threatening fire and CO. Technologies that work together to identify smoke and CO makes sense, given that carbon monoxide often builds up as a result of fire.
With a combination detector from Vivint you get the added protection that comes with 24/7 Monitoring. Our specialists are ready to respond to an alarm day or night whether you’re away or asleep in bed to ensure the safety of your home and family. See it and our other products in action.
Installing combination smoke and CO detectors is a simple way to streamline the interior of your home without sacrificing safety. Our combo detector is not hardwired, making installation easier. And fewer battery changes are necessary, and one unit requires less space than two separate units—convenient especially for smaller living spaces. Distinct alarms indicate whether smoke or CO is detected to avoid confusion.
Placement of your combination smoke and CO detectors is much the same as mounting individual detectors. And because the smoke CO detector is not hardwired, installation is easy. According to the National Fire Protection Association, you should install carbon monoxide and smoke alarms in the following spots:
On each level of a multilevel home
Near bedrooms and sleeping areas
Any other areas required by law
To make sure you’re protected again carbon monoxide, combination detectors should also be mounted in the following locations:
Near sources of CO.Place CO detectors 5-20 feet from common sources of carbon monoxide in the home, such as your water heater, furnace, or space heaters. Make sure you don’t place detectors too close to the sources, which could result in false alarms.
Near your attached garage. Running vehicles produce carbon monoxide through their exhaust systems. When a car is in motion or idling in an open space, carbon monoxide and other emissions dissipate and are released into the air as pollution. In enclosed spaces like a garage, however, the concentration of CO can quickly reach deadly levels and can seep into your home.
Try to place detectors approximately 6 inches above or below the ceiling. If ceiling mounted, the detector should be positioned at least 6 inches away from the wall. Other things to keep in mind:
Smoke and CO detectors should always be 5 to 15 feet away from fuel burning appliances.
Nothing should cover or obstruct the detector.
Avoid placing detectors next to exterior doors and windows.
Keep in mind that these are minimum requirements. Depending on the size of your home you may need additional detectors.
Choose Vivint for professional installation and round-the-clock-monitoring.
Protect your property with a camera that actively deters lurkers with light and sound and sends you notifications so you always know what's happening outside your home.
Unexpected visitors? With the Vivint Doorbell Camera Pro and smart locks as part of your system, answer the door with the Doorbell Camera, let visitors in your home with Smart Locks, and lock up when they leave.
Lock up with the press of a button or right form the Vivint app. With smart locks, you can set your system to arm when you lock the door, and know who's coming and going with unique access codes.
Real customer reviews tell the true Vivint story
Peggy Finkley
Oct 21, 2026
Great Service
We love that your company has stood by your word. The worker was friendly and very knowledgeable.
ELISABETH OLIVARES
Oct 21, 2026
Great customer service
Great customer service, answered my questions, and very helpful!
Mimi West
Oct 20, 2026
The young man that came was very nice…
The young man that came was very nice and knowledgeable about the system and explained everything and answered all of my questions.
Javier Garcia
Oct 20, 2026
The technicians where very helpful and…
The technicians where very helpful and very professional, the equipment is top class
Susan Helmer
Oct 20, 2026
Darnell was great
Darnell was great! Very patient with a challenging house!! He explained everything and made sure I was happy with the install.
Jacob
Oct 20, 2026
We recently had Vivint Home Security…
We recently had Vivint Home Security installed in our home, and our experience has been wonderful! From the moment we first inquired, Lucas was our initial point of contact and made the entire process simple and seamless. He helped us choose the products we needed while staying within our budget, and we truly appreciated his guidance and professionalism. A special shoutout to Randy, who was extremely professional, knowledgeable, and genuinely helpful throughout the installation process. What I appreciated most was the time Randy took to answer all my questions, provide valuable insights into our current services, and walk me through additional security options we may want to consider in the future. It’s refreshing to work with people who take the time to educate you rather than simply sell you something. That level of care, patience, and professionalism makes all the difference! We’re excited to have this added layer of security and peace of mind for our family. Thank you, Lucas and Randy, for making our experience such a positive one! Highly recommend!
Clyde Tatum
Oct 20, 2026
Great services and our technician was…
Great services and our technician was very helpful
Customer
Oct 20, 2026
Your equipment is lovely hope keep the…
Your equipment is lovely hope keep the standard going and Mr Joe your technician was excellent, professionally.
Lanny Cravens
Oct 20, 2026
Excellent job on installation
Excellent job on installation. Very knowledgeable technician.
Alan Page
Oct 20, 2026
My technician came and did an excellent…
My technician came and did an excellent job installing my system. He explained how the system works and if I had any problems I could reach out to him. Satisfied customer!!!
Greg
Oct 20, 2026
Great Service
From the entry call with Enrique to the installation by tech, Karon, the process was effortless and the service was great!
Susan Land
Oct 20, 2026
The technician was efficient and…
The technician was efficient and friendly. He demonstrated the system for me and assisted with account set up. So far, the system works well.
Ellen Anderson
Oct 20, 2026
customer service answered all my…
customer service answered all my questions and helped me trouble shoot the issues
customer
Oct 20, 2026
Professional & friendly
Informative, helpful and friendly service and installation!
Dennis McKenna
Oct 20, 2026
Great service representative.David set…
Great service representative.David set everything up after explaining where he would place all of the equipment. He double checked placement with me prior to any installation. All of the equipment was then demonstrated, and he didn't leave until he watched my wife and I use the new system. We were contacted later that day from his management to ensure that he had asked us where we wanted the equipment placed and to check on whether he explained the system to us. Great experience
Carmen Garcia
Oct 20, 2026
It was a good experience
It was a good experience. Really professional and they filled my expectations of installing and understanding of the system. I will recommend it.
Erica Kinlaw
Oct 20, 2026
The technician was great and explained…
The technician was great and explained everything to me.
Celia Lozada
Oct 20, 2026
Our neighbor is what made me subscribe…
Our neighbor is what made me subscribe to your company as I see and hear the deterrent noise every time. I approach their house next door.
Horace Williams
Oct 19, 2026
Our tech was amazing
Our tech was amazing! He was very professional and explained everything he was doing and why he was doing it that way! I recommend Mr Terry to anyone
DONALD
Oct 19, 2026
I had a friendly and knowledgeable…
I had a friendly and knowledgeable technician named Oscar. Asked me what I wanted and accomplished everything to my satisfaction. Showed me everything that I needed to know to operate the touch screen unit.
MICHAEL HEISEL
Oct 19, 2026
Installation was efficient and…
Installation was efficient and professionally explained.
Charles Mulkey
Oct 19, 2026
Very fast getting to our home
Very fast getting to our home. The technician kept informed the whole time he was here.
Robin Owsley
Oct 19, 2026
Excellent The customer service rep who assisted…
The customer service rep who assisted me ordering the protection plan was easy to understand and presented me with all the options and no high pressure sells. Remond (I think was his name) the installer was excellent. He explained everything he was going to do before he did it. He made sure we understood how to use all the equipment and he was so courteous and efficient. He provided us great technical services Thank you.
Richard Walters
Oct 19, 2026
Installation/ customer service
Install tech was knowledgeable about the product he was installing, answering all my questions in detail. Didnt leave any messes. Walked me thru every step on navigating thru the the Vivint app. Customer service was helpful with helping me understanding my bill. Everything seems to be working as it should.
Demilo Fox
Oct 19, 2026
I like the way that it notified me…
I like the way that it notified me about every movement. the setup was easy. The person that set it up was a great guy, explained everything well, now me and my family feel safe
Teresa Melvin
Oct 18, 2026
Overall Experience
The sales representative was very helpful in determining my needs, explained all the costs involved, and worked on our schedule for the installation. The technicians who completed the installation were friendly and professional; once the equipment had been installed, they explained the system to us and addressed all the questions we had.
ELENITA T BAUTISTA
Oct 18, 2026
Cris the person who came to put the…
Cris the person who came to put the doorbell and temperature sensor is a very nice person, professional, respectful, very knowledgeable and skilled employee. He is an asset to your company and I commend him to be the best employee of the month & year 2026.
Consumer
Oct 18, 2026
Fast install
Fast install, very informative installer, overall amazing experience!
Saurin Sanghvi
Oct 18, 2026
Excellent product and service by Ron
Excellent product and service by Ron
GUADALUPE GARCIA CAMARGO
Oct 18, 2026
I am very happy with my doorbell help…
I am very happy with my doorbell help me a lot to monitoring my house when I am working I love it thank you
George Binkley
Oct 17, 2026
Locked my house.short cut" to arm and disarm? I got up this morning and could not disarm with out calling Vivint. No notice, just no "short cut".
My review is more than 10 characters and Vivint will not accept it. Unacceptable.
SHINELL-TERRANCE CLARK
Oct 17, 2026
guidance
guidance. communication,complete explanation of the installation of the product.
Nancy Leaming
Oct 17, 2026
5/5 Stars
5/5 Stars - Phenomenal Service! Stephan, badge number, 125532, did an incredible job installing my security system! His competency and technical skill were flawless, but what truly set him apart was his integrity. He was completely honest, professional, and transparent throughout the process. Stephan showed excellent communication and took the time to explain everything clearly. He was incredibly kind, understanding, and compassionate regarding my security fears, giving me genuine peace of mind. It was also wonderful to hear him speak so highly of Vivint, proving his pride in his work. He is an absolute asset to Vivint, and I highly recommend him for his top-tier work and outstanding character
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*Offer Terms & Conditions
All offers are subject to availability and may not be available in all states, provinces, or zip codes. Taxes and additional fees may apply.
HomeProtect Offer Terms
Vivint’s standard HomeProtect package includes 1 Vivint Security Hub, 3 Vivint Door & Window Sensors, 1 Vivint Motion Sensor, 1 Vivint Keypad, and 1 Vivint yard sign. The HomeProtect equipment package is regularly priced at $349.99, with professional installation priced at $199 and Vivint system monitoring at $29.99/mo., unless otherwise advertised. Offer for new Vivint customers only.
HomeProtect Pro Offer Terms
The HomeProtect Pro Offer is available to new and existing Vivint customers and requires a minimum $749.99 expenditure on equipment (after discounts), professional installation and execution of a Vivint services agreement. Monthly service fees vary based on the products and services you select. HomeProtect system purchases and reactivations of previously-installed systems are not eligible for this offer.
Financing Options
Financing for equipment purchases is subject to credit approval by one of Vivint’s third-party financing partners. Qualified customers may finance at 0% APR for up to 60 months, with terms varying by offer. Financing requires a separate agreement with the financing partner. Month-to-month service agreements are available when equipment is purchased upfront.
Vivint Systems & Services
System can support multiple cameras, subject to sufficient WiFi speeds. Without a Vivint services plan, product and system functionality is limited (including loss of remote connectivity). Contact a Vivint representative for complete equipment, services, and pricing details. Products and services in Louisiana provided by Vivint Louisiana Commercial Certificate #58280. See Vivint license numbers here. Click here for full terms of service.
$199 FREE
Hassle-free installation
In-person system training
Guaranteed compatibility
Ongoing support and troubleshooting
Expert setup and configuration
Real-time customization
No guesswork. No DIY. Our pros install and optimize your system so it works exactly as it should.
We’ll walk you through your system and app, so you’re confident using it from day one.
We ensure every device in your Vivint system connects and works seamlessly together.
We test every device and back you up with expert support long after install.
Don’t lift a finger. Just schedule professional installation when it’s convenient for you.
Not sure what you need? We’ll help tailor your setup on install day with any added products.
All Vivint security system purchases include professional installation
Starting at $44.99/mo
Alarm event monitoring
Emergency response coordination
Immediate threat detection
Instant smart notifications
Always-on protection
False alarm management
Whether it’s a break-in or fire, we respond to every critical alarm type—so you’re always covered.
When seconds count, talk to us right through the panel—we’ll dispatch first responders for you.
Smoke, motion, glass break—whatever the danger, it’s detected instantly for quick action.
Get real-time alerts on your phone or Smart Hub so you stay informed and in control.
We’re always on—and your system always works with built-in cellular and 24-hr. battery.
Cancel false alarms quickly from your phone or panel while we verify and keep you covered.
All Vivint security system purchases include required 24/7 monitoring
Starting at $24.99/mo
Alarm event monitoring
Emergency response coordination
Immediate threat detection
Instant smart notifications
Always-on protection
False alarm management
Potential break-in? We have you covered—our professionals respond to every critical alarm.
When seconds count, we’ll give you a call—we’ll even dispatch first responders if we can’t reach you.
Unexpected movement or entry breached—whatever the threat, it’s detected instantly for quick action.
Get real-time alerts in the app on your smartphone so you stay informed and in control—from anywhere.
We’re always on and ready to help—and your system always works with built-in cellular and 4-hr. battery.
If an alarm is triggered, we’ll call to make sure everything’s OK. False alarm? Just give us the all clear.
All Vivint security system purchases include required 24/7 monitoring
