Detection plate
From Transformers Wiki
- Detection plates are a defensive technology from the cartoon portion of the Generation 1 continuity family.
Another of Wheeljack's many inventions, detection plates detect the presence of metal. They are installed on the floors of Autobot headquarters and linked to an alarm to alert the Autobots to any Decepticon intruders.
Presumably they are able to distinguish between Autobots and Decepticons.
Fiction
The Transformers cartoon
Shortly before Dr. Fujiyama contacted them, the Autobots were busy manufacturing detection plates. Wheeljack demonstrated the effectiveness of the new sensors by waving his hand over it, setting off an alarm. Optimus Prime was mightily impressed, asserting that the Decepticons would have difficulty evading it.
Some time later, the reprogrammed Nightbird was infiltrating Autobot headquarters when she encountered a floor lined with detection plates. After a few moments of careful thought, she magnitized her feet, walked up the nearest wall and along the ceiling, avoiding them completely. Enter the Nightbird
