We have the first version of the
Strike Alert which my husband got as a Christmas present from my parents. The only problem is that it will also detect electrical equipment, so you have to be careful about where you place it. It's good to find a spot where it isn't subject to the "noise" before you need to use it for its true purpose.
Our female cat is the only one in the household who is afraid of thunderstorms. When she hears the lightning detector go off, she runs down to the basement to hide in the closet under the stairs.