I am very glad that I made this purchase, l feel like if I ever need it l will be able to use it.
I just tested it (did not have to use it in the real life situation, yet) and it seems to be working properly.
So far excellent product, haven't used it....thankfully but prepared in the event of emergency.
Love that I have this on hand but hope I never have to use it. I bought an extra one to give to my sister and her family