Does using the Ghost Pro perk make the player invisible to all radar and scanning?

No, the Ghost Pro perk does not make the player invisible to all game elements. Users can still be targeted by enemy blackbirds, dogs, and motion sensors, and will still show up on camera spikes (though they won't glow white) and killstreaks (though they won't have a red box around their character). Unless the player is using a silencer, any gunfire will also show up on the enemy radar (including the use of the ballistic knife). Furthermore, Ghost Pro does not silence the player's character, which will still yell callouts when reloading, killing an enemy, etc., and the in-game announcer is just as likely to announce when Ghost Pro players are capturing an objective.

However, as mentioned, the perk does protect from most else, including spy planes, and does remove the red crosshair and name when targeted.

No, the Ghost Pro perk does not render the player character invisible to all detection techniques.

Attack Dogs still can perceive player characters on Ghost Pro, as do radar scans by the Blackbird killstreak and the Motion Sensor equipment item.

Contrary to the in-game description of Ghost, neither Ghost nor Ghost Pro will protect the player from an SR-71 Blackbird, Dogs (except on the Wii version), or from the Motion Sensor (Only Hacker Pro will).

Ghost Pro will not protect the player from an SR-71 Blackbird, dogs or from the Motion Sensor.

There are a few devices that can find a player who has Ghost Pro enabled.

- SR71 Blackbird

-Dogs (not on the Wii version)

Ghost Pro is undetectable from:

-Aircraft

-Infrared

-Sentries

(Enemies won't see your name or a red crosshair when targeting you)

-Motion Sensor

SR-71 and motion sensor can pick you up.