Also... Reading the spells description in the PHB, which is much more expanded then the SRD, reveals some insight. While it still starts by saying 'well known or clearly visualized', it goes on to state that you can also search for more general categories of items. The spell adapts by simply guiding you towards the nearest example of the item.
Now if I wanted to find specifically a scything blade trap, then yes, I would need to have pre-programmed a mental image of a scything blade trap into to turret.
However, such items as the nearest stairwell, a weapon, or even a piece of jewelry may not be as complex as a trap, but the spell
does not say the object needs to be simple in design. In fact, the broad category of "tools" could conceivably range from a hammer or a rake, to a cotton gin or a wheat thresher.
lol Maybe even all the way to whatever the heck
this is...
At no point in the spells full description (not including any possible errata or WotC DEV input) does it say the item needs to be simple or without moving or magical parts. It simply implies that with less specifics comes more results, and by effect, a shorter walk...
And in a dungeon full of traps... Finding the nearest trap is not exactly a
BAD thing! lol
Though after typing all that, it has dawned on me that a broken trap is still a trap... Meaning I may need to rethink the method of disposing of the traps once found. If only to keep it from constantly highlighting and attacking a busted trap...
With no serious intent...
It would be great if I could use a rat as the mount for a tiny spell turret. Then I just make 10 of them and toss them into the dungeon and check on them once a day. To make sure they haven't been eaten or stopped by any closed doors.