Modern foghorn powered by electric only?

[Flat Train]

I looked at my local foghorn at the end of a pier, and didn't see any air hose. looked somewhat like a siren. Are most foghorns electric now?

[Railgeek]

Nearly all of them are electric. Air powered diaphone fog signals or diaphragm fog signals are too costly to maintain. An all in one electric unit is cheaper to run. I have a set of AirChime KM85 and 110's from the Sisters Island lighthouse in BC. They were replaced with an electric fog signal.

[Flat Train]

Wish they were still air powered. Rumor has it that there is an a retired air powered fog horn on a power plant near where the new one is. Hopefully I can snap a few photos before the plant gets torn down.