Duplicate

You create an exact replication of an object you can see within range. The two objects are indistinguishable from each other and the duplicate functions as if it were the original object, except for any magical properties the original object may hold. This Duplicate disappears after 8 hours or after it's been dispelled.

A creature can discern whether an object is a duplicate by making an intelligence (investigation) check with a DC equal to your spell save DC.

At Higher Levels. When you cast this spell using 3rd level spell slot, the duration of the spell increases to 16 hours. When you use a spell slot of 4th level or higher, the duration of the spell increases to 24 hours.

FOR OBOJIMA