A "special scanner" refers to a device or machine that is not like a regular scanner. It has unique features or capabilities that make it different and possibly more advanced than other scanners. Full definition
Veterinary hospitals and animal shelters across North America are equipped with special scanners capable of reading these microchips. (magazinestreetanimalclinic.com)
Veterinary hospitals and animal shelters across the country are equipped with special scanners capable of reading these microchips. (vcahospitals.com)
BMW has their own special scanner that resets certain things like oil change, emission inspection, and... (yourmechanic.com)