PDA scanner used for stock control

Good day all

I have been reading about PDA scanners and was hoping to play around with one but they
are a bit expensive. Has anyone used a PDA scanner on ERPNext for stock-control?

From what I read, one can configure the PDA scanner to scan stock bar-codes and drop the
scanned stock item code in a pre-defined spread-sheet. Which means that one can
merely create a “DATA IMPORT” instance. And when downloading data from the PDA, the
stock will be updated ??

Am I understanding it correctly?

Many thanks