A cat tracker chip, similar to a dog microchip, is a small electronic device that is implanted under the skin of a cat for the purpose of identification and tracking. However, it's important to note that the term "tracker chip" can sometimes be a bit misleading when referring to pets, as the traditional microchip used for cats and dogs does not actively transmit a signal or have GPS tracking capabilities.

The more accurate term for this type of device would be simply "microchip" or "pet microchip." This microchip is a passive device that contains a unique identification number and must be scanned by a specialized scanner in order to retrieve the information.

When a cat is microchipped, a veterinarian implants the microchip beneath the skin, usually between the shoulder blades. The procedure is quick, painless, and requires no anesthesia. The microchip remains with the cat for life, providing a permanent means of identification.

The primary purpose of microchipping a cat is to facilitate the reunification of lost or stolen pets with their owners. If a cat is found without identification tags or other means of identifying its owner, a shelter or veterinarian can scan the animal for a microchip and use the information provided to contact the owner.

While traditional microchips do not actively transmit a signal or have GPS tracking capabilities, some advanced pet tracking devices exist that can be attached to a cat's collar and utilize GPS technology to provide real-time tracking and location information. These devices are separate from the microchip and require a separate subscription or fee for service.

In summary, a cat tracker chip, as it's commonly referred to, is more accurately described as a microchip that provides a unique identification number for the cat. For active tracking and location services, pet owners may choose to use a separate GPS-enabled tracking device.