Smoke & CO Detectors
Get the most out of your SimpliSafe system by getting answers to your questions and support for your devices.

Smoke & CO Alarm Listener
Get the most out of your SimpliSafe system by getting answers to your questions and support for your devices.
Smoke Detector
Get the most out of your SimpliSafe system by getting answers to your questions and support for your devices.
CO Detector
Get the most out of your SimpliSafe system by getting answers to your questions and support for your devices.
Smoke & CO Detector
Get the most out of your SimpliSafe system by getting answers to your questions and support for your devices.
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Where to Place the Carbon Monoxide Detector
Our Carbon Monoxide Detector sniffs out dangerous leaks that can happen in kitchens, fireplaces, basements, and more. Because it’s an invisible and odorless gas, Carbon Monoxide leaks could otherwise go undetected.
We recommend having at least one per floor, in a bedroom or in a central location. The Carbon Monoxide Detector should only be installed or mounted to a ceiling to ensure adequate readings.
*This product is designed for residential use. When used in a commercial environment, it should be supplementary to your existing smoke and/or CO detectors and not your sole detector(s).
In accordance with National Fire Protection Agency (NFPA) guidance, SimpliSafe® recommends replacing your Carbon Monoxide Detector within five (5) years of the manufacture date (found on the label on the back of your device).
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CO Detector
Where to Place the Smoke Detector
You should place Smoke Detectors near sleeping areas and make sure that one is on every floor within your home. You can mount the Smoke Detector on a wall or ceiling. If mounting it to a wall, ensure that you have it no more than 12 inches from the ceiling.
To avoid false alarms, we recommend installing the Smoke Detector at least 10 feet away from any furnace, stove, or fireplace. Additionally, avoid placing it in a garage or in any bathroom with a shower, as dust, debris, and steam have the potential to trigger false alarms.
We also recommend cleaning your Smoke Detector once a month, to avoid false alarms and debris build-up.
*This product is designed for residential use. When used in a commercial environment, it should be supplementary to your existing smoke and/or CO detectors and not your sole detector(s).
In accordance with National Fire Protection Agency (NFPA) guidance, SimpliSafe® recommends replacing your Smoke Detector within ten (10) years of the manufacture date (found on the label on the back of your device).
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Smoke Detectors
Carbon Monoxide Detector Overview and Installation Guide
Overview
Our Carbon Monoxide Detector sniffs out dangerous leaks that can happen in kitchens, fireplaces, basements, and more. Because it’s an invisible and odorless gas, Carbon Monoxide leaks could otherwise go undetected. We recommend having at least one per floor, in a bedroom or in a central location.
In accordance with National Fire Protection Agency (NFPA) guidance, SimpliSafe® recommends replacing your Carbon Monoxide Detector within five (5) years of the manufacture date (found on the label on the back of your device).
Before Getting Started
Before installing your Carbon Monoxide Detector, you will need to install your Gen 3 SimpliSafe® Base Station.
What’s in the Box
Carbon Monoxide Detector and its mounting plate
Screws and drywall anchors
You will also need a Phillips Head screwdriver and a ¼” drill bit to complete the installation.
Watch the video below for a hands-on experience from our team of experts for the installation process
Troubleshooting
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CO Detector
Preventing False Alarms From the Smoke & Carbon Monoxide Detector
Our Smoke & CO Detector uses photoelectric sensors, meaning it detects smoke through the distortion of a light beam inside the detector. Photoelectric smoke detectors will detect smoke faster than other detector types but can occasionally result in a false alarm. False alarms often occur when the device detects other particles in the air. Common false alarms are typically due to excess steam from a bathroom or kitchen, dust build-up inside the sensor, or (rarely) a tiny bug finding its way inside.
You can prevent false alarms by cleaning the device once a month:
Make sure to remove the battery before cleaning
Open the cover and vacuum the dust off the sensing chamber at least once a month
Replace the battery after cleaning
Test the smoke detector to make sure the battery is working correctly
Vacuuming the device monthly should prevent dust or debris build-up, and is an especially good idea after you have experienced a false alarm. Never use water-based products to clean the Smoke & CO Detector, as this can damage the device. Also, make sure to install your Smoke & CO Detector away from anything that will produce steam.
If there is a false alarm triggered by steam, dust, or debris, the primary contacts of that location will receive an alarm text prior to being called. The alarm text will notify you of the alarm at your location, but cannot be used to cancel the alarm or the request for emergency services. The first primary contact of that location will receive a phone call and can cancel the alarm event over the phone. You can cancel a Smoke alarm without needing to provide the agent with your Safe Word. You can also cancel a Smoke alarm by disarming your keypad with your PIN. If you don’t disarm your system or answer the phone call to cancel, we will place a call to your local fire department to request assistance at the location of your system.
If the Smoke & CO Detector detects CO, three things will happen at once. You will receive an alarm text, you will be called, and emergency services will be requested to the location of your system’s address. There is not a way to cancel the request for dispatch of emergency services when a CO detector is triggered, as Carbon Monoxide poisoning is a serious and potentially life-threatening occurrence.
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Smoke & CO Detector
Low Sensitivity Error
If you see the “Low Sensitivity" error for the Smoke Detector, Carbon Monoxide Detector, or Smoke & Carbon Monoxide Detector, that indicates that you need to clean your device so it can detect properly.
To Clean the Device:
Twist the detector counterclockwise to remove it from its bracket
Remove a battery from the device to ensure it is not receiving power
Use your vacuum cleaner’s soft bristle brush to remove any dust buildup
Put the battery back into the device and place it back on its mounting bracket
Vacuuming the device monthly should prevent any dust/debris from building up, and can prevent the Low Sensitivity error from occurring. Never use water-based products to clean the Smoke and/or CO Detector, as this can damage the device.
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Smoke & CO Detector
What is the "Early Alert" Warning for the Smoke & Carbon Monoxide Detector?
An exciting new feature of the Smoke & CO Detector is its Early Alert warning. When the Smoke & CO Detector senses traces of smoke or carbon monoxide, you will receive an “Early Alert: Smoke Detected” notification in the SimpliSafe® Mobile App, and a “Smoke/CO Pre-Alarm” notification on your Keypad. This warning is to give occupants of the building time to leave the premises safely before a fire begins.
To clear this notification from your Keypad, press the right arrow to remove it.
If the Smoke & CO Detector does not detect a fire soon after, you will then receive a “No Longer Detecting Smoke” notification, letting you know that it is safe to re-enter your home.
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Smoke & CO Detector
