This morning my wife woke me up before dawn. “Don’t you hear that?” she asked.
"Hear what? I replied groggily.
The CO detector in the hallway, on the wall just 2 feet from our bedroom door, was putting out a constant tone (rather than beeping). It turned out that one of the two batteries was leaking corrosive onto the contacts. But my concern is that I could not hear that thing going off. Not at all. The alarm tone apparently is pitched too high for my ski slope hearing loss.
We have the Kidde brand detectors right now, and I’m wondering if anyone knows whether there is a different brand which outputs a lower frequency alarm? Or are there other workarounds? Obviously I don’t want to wear my HAs to bed!