If you are Skilled or above in divination spells, you can passively sense when an item is magical like a Wizard can. (Wizards keep this benefit and don’t need to have Skilled divination for it.)

Wand of detect magic. Non-directional; if you are carrying any items in your inventory which are magical, “You feel a magical aura inside your knapsack.”, and any object classes in open inventory which are magical but not type-identified are identified as being magical.

The scroll of detect magic shows magic fountains on the level as well as magical items. Fountains discovered this way are then displayed as “magic fountain” when near or farlooked. Wizards can see them as magic fountains already without needing to detect magic.