Air horn

[buddy]

H2Orange had some Federal Signal air horns for sale awhile back. These are the same air horn/siren/PA combo used on Jacksonville police cruisers. Speaker is small, and designed to withstand bad weather.

I haven't used a horn for 30 years, if ever. These are a fun add on. I think they're great for security, especially when sitting in a parking lot waiting on my wife. I wired mine to operate only when unit is turned on, otherwise the stock horn works as normal.