|Infravision out to 60 feet, plus 2 feet per level. The character can attempt a skill roll to classify a specific heat signature.|
Absolute Success - As Success but may gain additional insights
Success - Can identify the creature or object if he is familiar with it.
Near Success - Can determine dimensions
Partial Success - Can determine general outline
Failure or Worse - Can get extremes of size and heat but is otherwise just a blob.