First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
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First Alert

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display

Key item features

  • Versatile Detection: This alarm senses high levels of propane, natural/methane gas, and carbon monoxide.
  • Digital Display: Features a crisp backlit digital display to view current and peak levels.
  • Remote Control: Can be muted remotely using almost any household remote control.
  • Easy Setup: Plugs into any AC outlet with no additional mounting hardware needed.
  • Backup Battery: Equipped with a backup battery to ensure functionality during power outages.
  • Loud Alarm: Emits a loud 85-decibel alarm that can be easily heard.
  • Test/Silence Button: Includes a convenient button to test the alarm and mute false alarms.
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Customer ratings & reviews

4.4 out of 5 stars
stars88 ratings64 reviews
How item rating is calculated
  1. 5 stars67% (59)
  2. 4 stars19% (17)
  3. 3 stars5% (4)
  4. 2 stars1% (1)
  5. 1 star8% (7)

Reviews summary

Pros

  • : Setup is a direct plug-in process.
  • : Offers setup at a lower cost than separate components.
  • : Combines natural gas and carbon monoxide detection.
  • : Screen is easy to understand.

Neutral

  • : Can be sturdy, but also prone to flimsiness.
  • : Can last up to 2 hours, but runtime varies across users.
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Showing 1-3 of 64 reviews

May 20, 2026
anonymous
5 out of 5 stars review

Verified Purchase

Replacement for ilder model. works great. Highly recommend if you have propane gas fir your kitchen stove, as I do.

Helpful?7D0UEBMAMIUD10099167
Mar 10, 2014
ibmturn
5 out of 5 stars review

Verified Purchase

Great Monoxide Alarm For A Older Person.

Very Pleased with the looks and Displays for a older person to have in their home. Excellent made and a very good Value. Meets all of my Expectation.

Helpful?7D0UEBMAMIUD10099167
Nov 5, 2013
Cathygee
5 out of 5 stars review

Verified Purchase

Great value

I live in an RV and have had trouble with previous detectors. They have all cost a fortune and have been hard-wired into my RV. When they malfunction, there is only a couple of ways to turn them off...cut the wire, or beat them to death with a hammer. This detector plugs in to an electrical outlet, has a battery backup and you can't beat the price! I'm not sure about the durability rating, as I have only had the detector for a couple of weeks.

Helpful?7D0UEBMAMIUD10099167