I use an older version of this, I'm not sure the quality is the same, but everything I've tried to replace it with is worse. I like the beeping, I need the beeping, it makes me less worried that my stuff is gonna crack!
That said I also have strong opinions about candy making pots. Its super important that they do not have a curved lip or raised edge ( I have Calaphalon pots that are for this and only this). Other wise you know that beeping clip is gonna slip and its gonna fling molten sugar all over the kitchen and in your face, just exactly when its almost exactly at just the exact temp you need!