Level: 2 (MU/Elf)
Range: 10' per level of the spellcaster
Duration: 6 turns
Effect: When the spell is cast, the spellcaster can see all invisible creatures and objects within range. The range is 10' for each level of the spellcaster. For example, a 3rd level spellcaster can use this spell to see invisible things within 30'.
At first glance, it seems more like a 1st level spell to me. After all, it's pretty specific. I expect it's second level to "counter" the 2nd level invisibility spell, which I suppose is fair enough from a game-balance perspective.
Of course, another facet is how often is a spellcaster is going to use up a spell slot for this? Not to mention how many spellcasters would even go to the trouble of putting a copy in their grimoire? Unless it's found as a scroll or spells are assigned randomly, I don't know that I've ever seen a PC with this spell. Still, I can imagine many scenarios where the spell could be extremely useful. I could see sylvan elves keeping this spell handy for dealing with annoying pixies. I expect a wizard trying to catch an assassin or cat burglar who is using a ring of invisibility would find this spell very handy.
I may try placing a scroll of this when there is a deliberate use for it later on in the adventure and see if it the players connect the dots.