Councillor Kelly was informed by the PSNI the device was found on a cash machine in Castle Mall in the town.
“It is reprehensible to think these criminals would try to con people out of money with no regard whatsoever to those affected,” he said.
“I just hope this device was found before any money could be stolen, the sooner those responsible are arrested, the better.
“I would ask that anyone who sees anything suspicious to contact the local PSNI immediately on 101.”