It cannot capture hostile monsters, those can only be captured using a Capture Pod. Creatures placed using a relocator will not follow the player, but will instead move naturally around the area they've been placed into. This also allows players to place creatures without use of a Pet Tether to hold them. By using the relocator on fish players can populate an aquarium, or collect small creatures to keep them company inside their settlements.
The relocator can hold up to three creatures at one time, as indicated by the symbols on the side of the gun. Once full captured creatures must be released before more can be picked up.