Hi Bert,
http://www.upek.com/solutions/mac/This is the one I have, we paid about $45 for each one. Well worth the $. I log into my exam rooms and my office each am and open AC and anything els I might want or need. Then when I go to leave the room I simply swipe the finger and lock the system, upon entering the room a simple swipe and I am ready to go. I prefer to chart as I go for the most part. I am solo with no clinical staff only and admin assistant.
