sampler vs sampling station

sampler and sampling station both are nouns.

Word	Noun	Adjective	Verb	Adverb
sampler	Yes	No	No	No
sampling station	Yes	No	No	No

As nouns, sampler and sampling station are synonyms defined as:

sampler and sampling station: an observation station that is set up to make sample observations of something

sampler (noun)	sampling station (noun)
a piece of embroidery demonstrating skill with various stitches	an observation station that is set up to make sample observations of something
an observation station that is set up to make sample observations of something
an assortment of various samples
someone who samples food or drink for its quality