What is a personal emergency alert monitor called which is worn around the neck and where is it available?

Question

The monitor is for emergency response to a health problem i.e. stroke, heart attack, epileptic seizure, etc. for people who may suffer these and need immediate help.

Answer 1

There are actually many such services but the two best known are Lifeline and Medi-Alert. I found and posted their links here for you.

http://www.lifelinesys.com/?campaign=102&gclid=CJXx0P-b0ooCFRn0gAodv1FEcA
http://medi-alert.com/