Ring Alarm Smoke and CO Listener

Sends Notification Whenever It Hears Sirens from Smoke or CO Alarms
  • This device does not detect fire, smoke or carbon monoxide and is intended to work with UL listed smoke and CO detectors that are 10 years old or less
  • Setup takes minutes and requires no tools at all
  • Requires Ring Alarm Security System (sold separately)
  • Battery life 3 years max
  • Includes Theft Protection: if your Door View Cam gets stolen, we’ll replace it for free



  • Details
  • Specs
  • Reviews
  • What's Included
  • Manage in the Ring app

    Get real time alerts to your phone when smoke or carbon monoxide is detected.

    Easy setup

    Setup takes minutes and requires no tools at all.

    Mounting options

    Ring Alarm Smoke and CO Listener should be placed 6” from existing smoke alarms or carbon monoxide alarms, or within 3” for best results.

    Optional monitoring

    24/7 monitoring when you subscribe to Ring Protect Plus. Ring’s professional monitoring center will alert you when smoke or carbon monoxide is detected.

    Frequently Asked Questions

    Can one listener cover multiple alarms?

    Since the Alarm Smoke and CO Listener should be placed within 6” of the alarm, it is recommended that each alarm has its own listener.

    Is the listener an alarm?

    No the listener is not an alarm and cannot detect when smoke or CO is present. It listens for your alarm and notifies you immediately to ensure maximum safety.

    How do I know if my alarm is compatible with the Alarm Smoke and CO Listener?

    The Alarm Smoke & CO Listener is compatible with smoke and CO alarms that emit the industry standard Temporal T3 (Smoke) and T4 (CO) alarm patterns in accordance with current UL and National Fire Protection Association guidelines. Smoke and CO alarms should be replaced and if your alarm's "Replace by" date has passed, you must replace it before you install your Ring Alarm Smoke & CO listener.

    How far can the listener be from the Base Station?

    The Alarm Smoke and CO Listener should be within 50 feet from the Base Station. You can also use a range extender if you need it to be further.

    Can I paint my Alarm Smoke and CO Listener?

    No, it will compromise the proper function of the device.

  • General
    Manufacturer Ring
    Manufacturer Product No. 4SS1S8-0EN0
    UPC 842861103236
    Dimensions 2.95 in. Diameter; 1.06 in. Height (7.5 cm. Diameter; 2.7 cm. Height)
    Color White
    Power 3V Lithium Battery Included
    Battery Life Max 3 Years
    Connectivity Z-Wave (250-foot range to Base Station)
    Setup Requirements Ring Alarm Security Kit (sold separately) and an existing Smoke/CO Alarm
    Warranty 1 year on parts, Theft protection
  • Leave a Review

    Only registered users can write reviews. Please, log in or register

    • 1x - Alarm Smoke & CO Listener
    • 1x - User Manual

Please wait...