Anthony, I have two talking blood pressure monitors; one is quite accurate
and works well and one is very inaccurate and a piece of junk. The accurate
one has a cuff that goes around your upper arm and inflates just like the
one in the doctor's office. The inaccurate one goes around your wrist and is
wildly inaccurate. Here are the details on the good one:

Brand Name: LifeSource
Model: UA-767T
Cuff size Medium (they come in different cuff sizes) 
Phone: 888-726-9966
Website: www.LifeSourceOnline.com

To make this ham radio related...  a good ham has to keep track of his/her
blood pressure when in hotly competitive contests and DX chases to avoid the
risk of a stroke! You say it can't happen? A fellow I knew a few years ago
got so upset over missing out on a very rare DX-pedition that he had either
a stroke or heart attack and died. I don't remember if he had a stroke or
heart attack, but once you are dead, it really doesn't make any difference!

Ron, K8HSY