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Alert System Type
Smoke / Fire / Carbon Monoxide
Sensor Type
Carbon Monoxide
Smoke / Heat
Infrared (Standard Consumer Electronics)
Battery Operated
IR Controllable
Voice Announcements
Ease of Installation
Beginner (Installs < 10 minutes)
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Carbon Monoxide/Smoke Detector will Sound All ONELink Alarms and Tell you of the Danger
First Alert SCO501CN-3ST ONELink Carbon Monoxide & Smoke Detector with Voice
First Alert SCO501CN-3ST ONELink Carbon Monoxide and Smoke Detector with Voice
First Alert SCO501CN-3ST ONELink Carbon Monoxide and Smoke Detector with Voice
Item# 7983
Price: $99.99
Free shipping on orders over $175 - See Details


  • Wireless interconnectivity which means, when one sounds they all sound
  • Announces location of smoke or carbon monoxide detection
  • Loud 85 decibel alarm
  • Photoelectric technology reduces false alarms
  • Pull-out battery drawer allows easy battery replacement

Essential Info

The ONELink Carbon Monoxide and Smoke Detector with Voice from First Alert comes equipped with an actual voice that speaks the type and location of danger in your home. The 85 decibel alarm and voice function, it is very easy to hear from a considerable distance. The unit comes equipped with twelve (12) available programming locations; Basement, Child's Bedroom, Dining Room, Family Room, Guest Bedroom, Hallway, Kitchen, Living Room, Master Bedroom, Office, Utility Room, and No Location. The ONELink feature enables you to install up to 16 carbon monoxide and/or smoke detectors inside your home. Once installed, ONELink enabled alarms will immediately begin communicating with each other. If one alarm is triggered, they will all sound the alarm. With the remote control feature you no longer have to worry about the difficulties of getting to your alarm to test it, you can now use your every day remote control. The volume and channel buttons are the only buttons you need to use on your remote control. This works with virtually all Universal IR remotes.The unit is powered by two (2) AA batteries which are included with your purchase.

Works with the INSTEON Smoke Bridge
The First Alert ONELINK Smoke detectors can be linked to the INSTEON Smoke Bridge to create email and text message alerts in case of smoke, fire or carbon monoxide using an INSTEON Hub or other central controller. It can also be linked to lights or other INSTEON devices manually or via software to turn lights on instantly in the event of an alert to make the escape faster, easier and safer.


What's Included

  • 1x - ONELink Carbon Monoxide/Smoke Alarm
  • Mounting Hardware
  • 2x - AA Batteries
  • 1x - Owners Manual
  • Specifications


    Manufacturer:First Alert
    Manufacturer Product No.:SCO501CN-3ST
    Product Dimensions:5" x 5" x 2"d
    Product Weight:0.9 lbs
    Sounder:85 decibels
    Safety Approvals:FCC compliant
    UL Listed
    Operating Temperature:40°F to 100°F
    Power:2 AA Batteries (Included)
    Warranty:5 years, limited


    11 Ratings
    5 star: 73%  (8)
    4 star: 27%  (3)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (11 customer ratings)
    Share your thoughts with other customers
    MUHAMMAD -- silver spring, MD   5/7/2013
    I got these detectors and very essay to setup and install.
    MARC -- los gatos, CA   3/14/2013
    Easy to set up with the related smoke alarms. Next up to try with the smile bridge.
    MICHAEL -- burbank, CA   2/14/2013
    Easy to install, fairly easy to set up and work with multiple units - be sure to read the instructions on that setup carefully. Would like to see regular smoke alarms with BOTH ONELink and voice announce...
    ERICH -- bayville, NY   3/16/2012
    clean look
    COLLEEN -- racine, WI   1/22/2010
    So far so good. I have to buy a second one sometime so they can talk to each other in case of a detection in a different part of the house.
    JAMES -- san francisco, CA   10/30/2009
    Excellent product, linking is super-easy, but the very small list of spoken room names means that if your mounting location is not in one of those rooms, the spoken alarm announcement will be misleading.

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