"It gives a sense of security to use after a heart problem."

 Dear Address!     I would like to share my experience of using a wiwe device in a few sentences. Very good device I can only say good things about it. It gives a sense of security to use after a heart problem. I know all the important problems immediately and I can react to them. Excellent product, congratulations to the designers, contractors, I recommend it to everyone.     Yours sincerely, Jakab József