Background info:
We are considering the purchase of some type of handheld scanner that
will save our outside sales force the paper-pencil solutions they are
currently using.
Our idea is to have them enter a customer account number, then scan
barcodes affixed to bins where our product is kept,
I've had success with Hand Held Product's Dolphin 7200 batch
scanner. The Dolphin is a very small, lightweight unit. The C language
compiler in their development kit is easy to use and the kit has several
templates which can be used to create applications like you apparently
need. The unit