SimpliSafe - Smoke & Carbon Monoxide Alarm Listener - White

Pair the Smoke & CO Alarm Listener with your current detectors to enable SimpliSafe 24/7 professional monitoring for fire and carbon monoxide. The Alarm Listener works with your existing detectors* to trigger your SimpliSafe System when there’s danger. If an alarm is detected, you’ll get fast phone alerts, so you’ll know something is wrong within seconds. Plus, with a professional monitoring plan, our agents can request immediate emergency dispatch—even when you can’t be reached. The Alarm Listener is finely tuned to hear only the standardized tone patterns of smoke and CO detectors, so you’ll get fewer false alarms from loud noises and televisions. *Works with UL certified Smoke and CO detectors. Professional monitoring plan required for emergency dispatch.

Rapid emergency response

Allows our monitoring agents to request immediate emergency dispatch, even if you cannot be reached.* *Professional monitoring plan required for emergency dispatch.

Peace of mind

Know your Alarm Listener is online and ready to protect with device status in the SimpliSafe App.

Instant notifications

App notifications alert you to dangerous situations immediately, whether you’re home or away.

3 year battery life

You’ll only need to replace the battery once or twice over the Alarm Listener’s lifetime.* *Varies based on settings, placement and usage.

Easy to install

Simply secure the Alarm Listener within 4" of an existing detector.

Only one Alarm Listener needed

With hardwired smoke and carbon monoxide detectors, just one Alarm Listener monitors the entire home.

Works with existing detectors

Works alongside your existing smoke & CO detectors* to enable 24/7 professional monitoring. *Compatible with all UL-certified smoke and CO detectors.

Listens only for detectors

Finely tuned to listen only for the standardized alarm patterns of certified smoke & CO detectors.

UL Certified

Certified to differentiate between smoke and carbon monoxide alarms and transmit the appropriate alarm signal to the Base Station.

Pro Tip:

Only one Alarm Listener is required for homes with hardwired detectors. For homes with non-hardwired detectors, place an Alarm Listener within 4” of any smoke and/or CO detector you wish to be monitored.