We have inspection sheets with the tool number (or equipment number) written at the top and keep a file. If you're interested in one, though, follow the following links:
Barcodes Inc.
Tiger Direct
I've never used one, but I'm thinking it would automatically create a spreadsheet with the data scanned when you hook it up to a computer. For example: We have an air monitor that records a set amount of time. I plug it into the computer and it tells me what time which gas was detected at what concentrations.
-Justin
Eat. Skate. Sleep. Repeat.