Costco Membership Card Scanners For Sale. A photo posted by costco insider on x, formerly known as twitter, shows a costco employee scanning a shopper’s membership card before entering the whole. The 411 on wholesale warehouse shopping 03:21.

Your card is scanned at the beginning of checkout to confirm you have a membership before purchasing anything. A photo posted by costco insider on x, formerly known as twitter, shows a costco employee scanning a shopper’s membership card before entering the whole.