Barcode Inventory:

Plug into barcode listener to provide basic in / out
inventory tracking.

1. Make sure barcode_listener and barcode_inventory are enabled.
2. Visit /admin/settings/barcode-listener/inventory
3. Select a content type associated with barcodes.
4. Select field(s) that contain barcodes.
5. Go to /barcode-inventory

This module tracks inventory with a barcode scanner.
Select what content type you use for inventory, then
select what field(s) you associate with barcode. Now
you can scan items in, scan items out, check recent
activity and current inventory. This module integrates
with views for longer history and current quantity in
stock. It also hooks into the node edit form for the type
selected so stock count can be updated manualy.