infrared sensor unfindable : ctc101 eingeneering kit

hi everybody!

i'm having troubles about finding out the datasheet of this sensor:

anyone knows where may i find it?

settimo_percorso’s first picture:

Clipboard01.jpg

Link to the second image (bottom of the board):
https://drive.google.com/open?id=0ByhDQDLKR-etZWtMWnVfLXAtYXdDTVA2OFFaYVVZR05HOExF