s13 digital climate swap question

[artomitive]

hi
anyone here that have done digital climatic swap on s13, have used this 2 sensors?
saw many guys using just the black box sensor.
but my kit bring both

http://i126.photobucket.com/albums/p112/sxj6151/NICO2/IMG_6273.jpg

[rellik27]

I used just the black sensor