From manufacturer:

Male straight – female 90°

M12 – M12, 4-pole

3× LED (PNP), (NPN) on request

Art-No. 7005 - M12 Lite - (plastic hexagonal screw) on request

Plastic housings with good resistance against chemicals and oils.

The resistance to aggressive media should be individually tested for your application. 

https://shop.murrinc.com/en/Connection-Technology/Connection-cables/Signal/M12-male-0-M12-female-90-A-cod-LED-7000-40341-6541500.html?listtype=search&searchparam=7000-40341-6541500&src=search&srchPage=1&perPage=10&pos=1

List price is 133.25 per piece, I am selling it at 69.99 per piece. Still in package, brand new.