Knight Rider

In a dire emergency, Michael Knight can activate a secret homing beacon hidden inside a gold pendant he wears around his neck. The beacon sends a priority signal that can remotely activate KITT and override his programming so that he rushes to Michael's aid.

("A Good Knights Work")

Homing Device.jpg

A Homing Device was later installed in KITT. Michael used it to track KITT after Michael "lost" KITT in a all-or-nothing drag race. The Homing Device gives off a Homing Signal.

Homing Signal.jpg
Homing Signal in action.jpg

("Knight of the Fast Lane"; KITTnap"))