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
Drop us a line! Or skip the form
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
Janet Varela
Oct 15, 2026
Great customer service
Great customer service. Very informative and professional.
Jane Billian
Oct 15, 2026
Vivint
Took a while to install but issues that did arise was taken care by the installer. So far unit is working very well and easy to use.
Major Pringle
Oct 15, 2026
The installation was smooth and the…
The installation was smooth and the technician, Jalen Morgan knew what he was doing.
Joy Ingram
Oct 15, 2026
The worker was nice and told us about…
The worker was nice and told us about everything
customer
Oct 15, 2026
Very respectful
Very respectful. Explained in detail everything that we needed to know about the install and the products. Left us his card if we had any questions.
Alexis Pregillana
Oct 15, 2026
it was an easy process to schedule for…
it was an easy process to schedule for intall, and the techs were awesome at explaining everything before leaving. I would recommend Vivint to others!
Scott Johnson
Oct 15, 2026
James was terrific
James was terrific! He did an amazing job and went over the top in customer service! He took his time, explained everything to us, listened and cleaned up. He is the definition of true customer service!
Jeffry Felcman
Oct 15, 2026
Service was excellent
Service was excellent, prompt and thorough. The technician, Ethan, was courtesy and knowledgeable.
Kolby Blatchford
Oct 15, 2026
We had a great experience with Vivint
We had a great experience with Vivint! Patrick and Donnie did an excellent job installing our home security system. Both were professional, knowledgeable, and took the time to make sure everything was installed correctly and working properly. They explained how everything worked and made the whole process easy. We really appreciated their attention to detail and the quality of their work. Highly recommend Patrick and Donnie to anyone getting a Vivint system installed!
ebere totty
Oct 15, 2026
Technician's professionalism and speed.
Technician's professionalism and speed.
At
Oct 15, 2026
Carlos was really nice and great to…
Carlos was really nice and great to talk to made the process easy and was super fast
Brandon
Oct 15, 2026
Jonathan was incredibly knowledgable…
Jonathan was incredibly knowledgable and helpful in getting us the Security System we needed, replacing our dated ADT system. Additionally, our installation tech did a great job and was onsite within minutes to give us the best closed-loop technology on the market!
AMY GLENN
Oct 14, 2026
Everything from sales to installs was…
Everything from sales to installs was perfect.
Rudy Pina
Oct 14, 2026
Great experience what whole crew…
Great experience what whole crew assembling my whole unit solar and panels great customer service and great electrician was very knowledgeable and very helpful. I appreciate the whole crew that installed my whole system..
Lawrence Zygmunt
Oct 14, 2026
Hooked up the system exactly as we…
Hooked up the system exactly as we planned for my home security. Showed me how to use the system and the options that are available.
Asif Shaikh
Oct 14, 2026
To Secure My house and my family.
The Values of your money worth when you get the great service to Secure your home and your family. The results for camera is excellent as well as the range and areas it covers the best. Crystal and very clear.
Nigel Smith
Oct 14, 2026
I had an amazing experience with…
I had an amazing experience with Vivint! Everyone I encountered was extremely patient, professional, and kind throughout the entire process. They took the time to answer my questions and made sure I felt comfortable and confident with my new security system. As a mother who works long overnight hours at the hospital, having peace of mind knowing my children are safe while I’m away means everything to me. I can now go to work feeling more secure and at ease. Thank you, Vivint, for your outstanding customer service and for giving me one less thing to worry about. I truly appreciate you all!
Daniel
Oct 14, 2026
My technician was polite, honest and patient
My technician RB was polite, honest patient and very thorough
DAVID B
Oct 14, 2026
Terrific installation
The installation. Ben and Richard were terrific. They showed on time and stayed late to get two systems up and working. Unfortunately I had no internet service which made their install more difficult but they stayed and got their equipment installed and working,
Diane
Oct 14, 2026
I had a great installer Jose
I had a great installer Jose! He explained everything in detail. He did a wonderful install and left everything neat and clean.
Jose Perez
Oct 14, 2026
The technician was courteous and…
The technician was courteous and thorough during the process.
Tammy Silver
Oct 14, 2026
Installation
They were able to give me an earlier installment date. Intaller was very profession and explained the equipment thoroughly.
PauletteWood
Oct 14, 2026
I am finally relieved to have my new…
I am finally relieved to have my new security system. I am able to see who is coming and going around my house, it gives me a sense of security knowing I have a reputable company that I can trust. They were upfront with the cost and there were no hidden prices. I look forward to a good continuing relationship with Vivint.
Rene
Oct 14, 2026
An amazing experience!
I had an amazing experience as my technician, Tristan Santana s was the best! He was highly knowledgeable, respectful, professional and courteous!
Richard Sage
Oct 14, 2026
Jariel was very knowledgeable
Jariel was very knowledgeable, helpful with the app setup on my phone and conscientious about cleanup as it was a torrential rainfall the day of installation. She truly cared about making sure I was satisfied with her work and that everything was working properly for me.
Jack And Annette Tones, Jr
Oct 13, 2026
Satisfied
Really satisfied with the installed equipment so far. Also Darius, my installer, was awesome and very helpful.
Vernon Dariso
Oct 13, 2026
Victor made himself feel like family.
Victor made himself feel like family.
David
Oct 13, 2026
I really love the products and…
I really love the products and ingenuity of VIVINT. I love how VIVINT can integrate to make my life more simplistic however, I would like to add that. I think VIVINT should really look into having its own AI built into the system for example where you could say hey VIVINT turn on my lights or hey VIVINT arm my system so on and so forth I think this would be a great feature and you should also bring back being able to integrate Google products or Alexa and other services so that customer can get the full experience of having a SMART HOME system. Other than that I think David is a great company and I really admire the technicians and the hard work that they do.
Jitho Jalloh
Oct 13, 2026
I am extremely satisfied with my…
I am extremely satisfied with my experience with Vivint Home Security. Knowing that my home is protected gives me a great sense of safety and peace of mind. I especially want to recognize Lou, who came to my home. His knowledge, professionalism, and patience were truly outstanding! He took his time to address my concerns, explain everything clearly, and make sure the system was working properly. He never made me feel rushed and demonstrated exceptional customer service throughout the entire visit. It’s rare to find someone so knowledgeable, patient, and dedicated to customer satisfaction. Vivint is fortunate to have such an excellent technician representing the company. I truly appreciate his service and highly recommend Vivint Home Security!
Home Security
Learn all about smoke detectors, carbon monoxide detectors, and motion sensors and how they can improve your home’s security.
Home Security
Is your smoke detector sounding the alarm for no apparent reason? Find out the most common reasons for false alarms and how you can fix the problem.
Home Security
Learn about smoke detector installation and where to place your smoke alarms for maximum protection.
Home Security
Learn what it means when your smoke detector is flashing red and how to keep your home protected and detectors working.
Home Security
If your carbon monoxide detector goes off, act fast. Learn what to do, what causes carbon monoxide leaks, and how to keep your home safe.
Home Security
Learn all about smart smoke detectors for enhanced home fire safety, from the placement tips and features to look for optimum protection.
*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
