Artificer Knowledge: An artificer can make a special artificer knowledge check with a bonus equal to his artificer level + his Int modifier to detect whether a specific item has a magical aura.
The artificer must hold and examine the object for 1 minute. A successful check against DC 15 determines that the object has magical qualities, but does not reveal the specific powers of the item.
An artificer cannot take 10 or take 20 on this check. A particular item can only be examined in this fashion one time; if the check fails, the artificer can learn no more about that object.