The Tanita BD-815U is the scale that has been recommended here. I got very lucky and bought one at a reduced price from a LC who decided to leave private practice. I have been very happy with it.
http://www.tanita.com/en/bd-815u/
I don't think I could manage without the carrying case. It is really big and I wouldn't want to bang it around. If you are creative, you might be able to make something to use to carry it.
Laura Spitzfaden, LLLL, IBCLC
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