Replacement Carbon Monoxide Detector for Atwood 36681

Updated 10/22/2025 | Published 03/15/2022

Question:

Since the Atwood 36681 is discontinued what would be the best replacement considering the size of the 36681 hole Im dealing with?

asked by: Joe

Expert Reply:

You could use the 2-wire Propane Gas and Carbon Monoxide Detector part # RS34FR in place of the Atwood 36681 that you referenced. This would fit in the cut out you have now and has a flange that is large enough that would cover the hole.

expert reply by: Jameson C

Mary

8/5/2025

Atwood 36681 RV Carbon Monoxide and Propane Gas Detector - 12V, White Needs replaced. What is company name and model number of replacement ?

Jameson C.

8/5/2025

@Mary Atwood is no longer in business so the above mentioned detector would be your best replacement solution.

Fred K.

10/22/2025

The old Atwood is a three wire, the RV has 3 wires . How .should I connect the 2 wires of the new alarm to the 3 wires in the RV?

Jameson C.

10/22/2025

@FredK The third wire of the Atwood is for an aux power wire in case of a power outage. So you'd need to run the extra power wire of your RV to the single power wire of the # RS34FR.