The Canon Analysis Device is a device primarily used to ascertain if a canon character is OOC and how much, or if there is a character replacement. It is well known for the loud BEEEEEEP it emits when a severely OOC canon is checked. It has also been used to size up situations. Too much OOC, however, has been known to destroy these devices; in fact, they are the most frequently-replaced items of all. They will often, before self-destructing, display gibberish. A CAD that has been overloaded to an extreme extent will actually explode with force roughly equivalent to a hand grenade.
There are several variants on the basic CAD, including:
- The Combined CAD subset combines the functions of this and the Character Analysis Device.
- The Heavy-Duty CAD is designed to detect up to 200% OOC, such as in Evil Twins. Newer models list the length of the pole required for such a character to touch canon. Heavy-Duty CADs are issued to Despatch to deal with the extreme OOC inflicted on kidnapped characters and the presence of the Author in the fic itself.
- An early model CAD did not burn out as easily, but was constantly amending its readouts.
- In the mirror multiverse, EPC Agents use Control Analysis Devices.