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Atwood 31011 RV Carbon Monoxide and Propane Gas Detector - 12 Volt
You will not receive black as it is discontinued - you will receive the white detector.
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Atwood 31011 RV Carbon Monoxide and Propane Gas Detector - 12 Volt

Part Number: 31011
Manufacturer Number: 31011
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The black LP detector is no longer available - you will receive white if you order this.
I understand that I will receive a white detector because the black is discontinued by Atwood.
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Retail Price$125.99
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Atwood 31011 RV Carbon Monoxide and Propane Gas Detector - 12 Volt

Important : The black LP detector has been discontinued by Atwood - the only LP detector available is the white version. Please understand that if you purchase this listing - you will receive the white detector and not the black.

Using fueled appliances in your RV can increase the risk of high levels of propane gas and carbon monoxide. Protect your family from both with one detector. Uses less power, gives early alerts with fewer false alarms, and lasts up to 7 years.


  • Carbon monoxide and propane gas detector alerts you to potentially dangerous levels of gas in your RV
    • Detects levels of CO as low as 30 ppm
    • Detects levels of LP gas as low as 2,000 ppm
  • Fuel-cell sensor gives an earlier alert when CO levels are high
    • Less sensitive to false-alarm triggers than other detectors
  • Test/reset button lets you test the sound and reset to normal after an alarm
  • 4 Indicator lights take out the guesswork
    • Carbon monoxide light goes on during active CO alarm
    • Propane light goes on during active LP gas alarm
    • Power light illuminates if power is low
    • Fault light lights up if maintenance is needed
  • Power conservation mode reserves current draw if your RV power surges or dips
    • Second power wire can be connected to auxiliary 12-volt battery for backup
  • Adapter plate included for flush-mount installation
  • ETL tested for residential and RV use
  • CSA certified
  • Made in the USA


  • Wall cutout size: 3-9/16" long x 3-7/16" wide
  • RV voltage: 12 volt DC
  • Current draw: up to 75 mA
  • Alarm intensity: 85 decibels at a distance of 10'
  • 7-Year lifespan
  • 2-Year limited warranty

Note: Because LP gas is heavier than air, this detector should be installed no more than 18" from the floor so that it can accurately detect the amount of gas in your RV.

The risk of carbon monoxide (CO) poisoning goes up when you use fuel-burning appliances, and propane (LP gas) is usually the first choice of power in RVs. This 2-in-1 alarm gives you early detection, and peace of mind from the possible dangers of both gases.

5 Stars
CO monitor for Travel trailer
The unit was shipped promptly and installed easily
Did you find this helpful?  10 of 10 Found Helpful
Reviewed by: (Verified Buyer)  from Tyler Tx. on 11/5/2019
5 Stars
RV Owner
Item installed fine without issue and appears to be working fine. I bought this to replace mine that was 2 years over it's expiration date. Good price.
Did you find this helpful?  10 of 11 Found Helpful
Reviewed by:  from Valparaiso. on 10/25/2019