their was a foam pedant (cqr ?) which had magnet to keep in vertical, foam or a 1/2 a brick being chucked a the bell would knock it in to alarm
there has been all sorts of clever stuff, however the industry is very "price sensitive"
No, why would you, similar to a garage condemning a car because they are no longer made.
As I say chug away until there is an issue then document and report, that's all you are paid to do.