The waiting to be confirmed source of the beeping has kind of served as a reminder to check our batteries and dates for devices that protect against CO & Propane leaks.
My Propane detector says 5 years from the date of sale, but Mfg Date shows Sept 7, 2018? I bought 13 months later
These devices also are suppose to have end of life beeping or warning.
I have already found what I will buy when I get the end of life warning or Sept 2023, whichever cones 1st.
I will upgrade my above model to the new unit below that will additionally do the CO detection effectively giving me 3 CO detectors inside coach.
https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1
At $69 I would buy now, but I will lose 16 months with it being idle or starting to soon; so I will wait. Never thought in terms of $1 / month to have CO / Propane detector.