A very cozy and tranquil game with a unique gameplay concept. Excellent take on the theme!
I didn't expect to have so much fun with this entry.
The only thing I would change is the scan indicator thingy. I think it should be more visible or give a sound cue, when the object is in range and ready to scan. I found myself often missing this indicator because i was too focused on the EM readings.
But that ultimately comes down to personal preference i suppose.
Overall amazing game, great job!