Hi,
I need an opposed-mode photoelectric sensor with a gap wider than 13 mm and deeper than 10 mm. Also, it should have only an LED and a phototransistor (facing each other, with a physical slot in between). Nothing else, so that it can be cheap (less than 5 EUR would be nice). If someone knows of a good part and a good distributor, please let me know. Thank you.
Best.