Smoke & Carbon Monoxide Alarm Listener

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Smoke & Carbon Monoxide Alarm Listener

The simple way to enable professional monitoring for your smoke and CO detectors. As soon as the Alarm Listener hears an alarm, it triggers your system.

*Works with UL certified residential Smoke and CO detectors. Professional monitoring plan required for emergency dispatch.

Free shipping with system order
60 day return policy
First month of monitoring is free

Every second counts

Power up your protection with professional monitoring

Rapid emergency response

Our agents request emergency dispatch, even if you're away.

*Requires a professional monitoring plan

Fewer false alarms

Finely tuned for UL-certified residential smoke and CO sirens.

Reliable power

3-year battery life for long-lasting protection and less maintenance.

*Varies based on settings, placement and usage.

Easy setup

Place Alarm Listener 4 inches from your existing detector.

Meet the Alarm Listener

Unlock rapid emergency dispatch*

When your Alarm Listener hears an alarm, you’ll instantly get vital updates in your SimpliSafe® App.

Confirm an alarm with one tap
Quickly cancel false alarms using your Keypad or phone.
With professional monitoring, our agents will request emergency dispatch if you don’t cancel, or can’t be reached.

*Requires a professional monitoring plan.

Reduce false alarms

Our Smoke & CO Alarm Listener's finely-tuned audio sensor only listens for UL-certified residential smoke and CO detector sirens, resulting in fewer false alarms from household noise.

Maximize your reach

If your hardwired detector system is interconnected, then you only need one Alarm Listener for your entire home. When one detector sounds, they all sound, and your Alarm Listener will pick it up.

Product details

Features

Finely-tuned to differentiate between smoke and carbon monoxide alarms.
Get device status and instant alerts in the SimpliSafe® App.
Works with hardwired and battery-powered smoke and carbon monoxide detectors.
UL Certified
Up to 3 year battery life
1-year limited warranty

Specs

1.30" x 3.35" (H x W)
2.92 oz (listener and mount)

What’s included

Smoke & CO Alarm Listener
Mounting bracket & hardware
Batteries

Requirements

UL-certified residential Smoke and/or CO detector (Smoke: UL 217, UL 268; CO: UL 2034)
Wi-Fi connection (2.4GHz)
SimpliSafe® Gen 3 system
Android or iOS app

Installation

Set it up yourself in minutes

The Smoke & CO Alarm Listener is easy to set up. It’s designed to be mounted on a ceiling or wall, 4 inches away from your existing detector.

We’re here to help. You can get interactive guidance in the SimpliSafe® App, call customer service with questions, or have a trained technician do it for you.

FAQs

What is the SimpliSafe Smoke & CO Alarm Listener?What is the SimpliSafe Smoke & CO Alarm Listener?

The SimpliSafe® Smoke & CO Alarm Listener is a device that pairs with your existing UL-certified residential smoke and carbon monoxide detectors. When your detectors sound an alarm, the Listener "hears" it and triggers your SimpliSafe® system, enabling 24/7 professional monitoring. A professional monitoring plan is required for SimpliSafe® agents to request emergency dispatch. The device itself will still trigger your SimpliSafe® system and send app notifications without a plan, but agents will not request dispatch.

How many Alarm Listeners do I need?How many Alarm Listeners do I need?

For homes with hardwired smoke and carbon monoxide detectors, typically only one Alarm Listener is needed as it can monitor the entire home. We recommend placing it alongside the detector that’s closest to your Base Station. For homes with battery-powered detectors, place an Alarm Listener 4 inches from each smoke and/or CO detector you wish to be monitored. For these situations, consider swapping a few of your existing detectors for our Smoke & CO Detector instead. These devices also enable rapid emergency response (with a professional monitoring plan) in addition to sensing the presence of smoke and CO gas. If you’re not sure what type of detectors you have, remove a detector from its bracket to check for wires. If the wires are connected to the detector, it’s likely hardwired. To be certain, test the detector to hear if all of your home’s detectors sound.

Is the Alarm Listener compatible with all smoke and CO detectors?Is the Alarm Listener compatible with all smoke and CO detectors?

Yes. The SimpliSafe® Smoke & CO Alarm Listener is compatible with all UL-certified residential smoke and CO detectors.

What is UL Certification?What is UL Certification?

UL Certification signifies that a smoke or carbon monoxide (CO) detector has been rigorously tested and evaluated by Underwriters Laboratories, an independent, non-profit organization, against specific safety and performance standards like UL 217 or 268 for smoke alarms and UL 2034 for CO alarms. This comprehensive process includes initial testing, factory inspections providing the highest level of assurance that the device will reliably detect hazards and function as intended to protect lives. UL certified detectors will be marked on the underside or inside the casing.

How do I know if my Alarm Listener is working?How do I know if my Alarm Listener is working?

Each day, your SimpliSafe system will automatically send a test signal. You can track this within your SimpliSafe App timeline.

How do I install the Alarm Listener?How do I install the Alarm Listener?

Secure the Alarm Listener 4 inches from your existing smoke or CO detector using the included mounting hardware. You can find simple, step-by-step instructions in the SimpliSafe App.

What is the battery life of the Alarm Listener?What is the battery life of the Alarm Listener?

The Alarm Listener has a battery life of approximately 3 years, though this can vary based on settings, placement, and usage. When it is time to replace the 1 CR123A battery, your Base Station will audibly alert you. You will also receive a notification in the SimpliSafe App.

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Try it risk free

Test out the Smoke & CO Alarm Listener. If you aren’t 100% delighted, call us within 60 days for a full refund and let us pay for return shipping.

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