read-out vs electronic device

read-out and electronic device both are nouns.

Word	Noun	Adjective	Verb	Adverb
read-out	Yes	No	No	No
electronic device	Yes	No	No	No

As nouns, electronic device is a hypernym of read-out; that is, electronic device is a word with a broader meaning than read-out:

read-out (noun)	electronic device (noun)
an electronic device that displays information	a device that accomplishes its purpose electronically
the information displayed or recorded on an electronic device
the output of a computer in readable form