Clarification/Follow-up by Ccl471 on 06/27/06 8:52 pm:
Dear labman:

Thanks for responding. By portable I mean the kind on wheels you can push around like a cart, that you can place anywhere in a room. How good are those?


Thanks again,

C.L.

Clarification/Follow-up by labman on 06/27/06 10:25 pm:
I don't know enough about them to say.