Used 923-0280 LCD Temperature Sensor
Fits:
Apple iMac 21.5″ Late 2012
Apple iMac 21.5″ Early 2013
Apple iMac 21.5″ Late 2013
Apple iMac 21.5″ Mid 2014
Apple iMac 21.5″ Late 2015 1080p
Apple iMac 21.5″ Late 2015 4k
Apple iMac 21.5″ 2017 1080p
Apple iMac 21.5″ 2017 4k
Apple iMac 21.5″ 2019 4k
Part number: 923-0280
Fully tested working part