Microchip implant (animal)
（重定向自Injectable ID chip）
![Microchip implant in a cat.](/Images/godic/202501/20/Feline_identifying_microchip5651.JPG")
![An RFID chip (also known as PIT tag) next to a grain of rice.](/Images/godic/202501/20/Microchip_rfid_rice5651.jpg")
![Information about the implant is often imprinted on a collar tag worn by a pet](/Images/godic/202501/20/Cat_with_microchip_implant5651.JPG")
![Example of an RFID scanner used with animal microchip implants.](/Images/godic/202501/20/Rfid-scanner5651.jpg")
A microchip implant is an identifying integrated circuit placed under the skin of an animal. The chip, about the size of a large grain of rice, uses passive RFID (Radio Frequency Identification) technology, and is also known as a PIT tag (for Passive Integrated Transponder).