We have looked into a Bar Code for the Spotters. There were are few problems with doing that.
There are a lot of different Bar Code Systems for example National Chain Retailers use a certain bar code and those don’t not work in smaller locally owned businesses.
If you are wanting a basic bar code there are places to get free bar codes or we can produce you some. I would need to know what information you want and how many as long as it will work with your retail store. Check with them to see what kind of code they use.
We would print them out on a small vinyl sticker that you can put on the side of the Spotters and be able to sell them that way. Most of the operators are just selling them to the Customers that you clean for.
We here in Rexburg have a display in a Local Carpet and Tile store and they just sell them for x amount and put them into their own system without a bar code.
Hope that helps