Detector Recommendation For Gold Coins Under Floor

[CPT_GhostLight]

If there's too much intereference in the apartment, and there probably will be specially if other people live in the building, you may want to consider getting a Snake Cam, also known as an Endoscope or Borescope. They are tiny cameras with lights on a long flexible wire that are relatively cheap which can be poked through a tiny hole to look around under the floor. Some even work on a cell phone. Even if you can get a metal detector to work in there, it could help you verify signals before you pull up flooring.