Cocoa police showed off the devices that were helping thieves steal money at a gas station pump.
A maintenance worker discovered credit card skimmers at the Chevron station at 2700 U.S. Highway 1.
Police are not sure how long the device may have been in place.
Authorities are asking customers who made fuel purchases there to contact their credit card company to verify all recent transactions.
Additionally, they are asking people to be on the alert for any other devices that may be in place in the area.