RH Vision City has a bar code scanner that tells you the price of an item. Using it is as simple as placing the item in question under the scanner with the bar code facing up and viola, the price appears on the display. It is a convenience considering the large size of the supermarket.
Anyway, I tried it out for the second time last week. The first time I tested it the system was not online and an error message kept coming. Thankfully, now it works.