Photoelectric sensor CF2ET is designed to receive light signals eg transmitted by personal light and their processing into signals on outputs that can be double contact NO / NC, double transoptor, transmission output after RS-485 connector. The CF2ET photoelectric sensor can be used in non-explosive fields (rooms), methane fields of mining plants in excavations (rooms) classified as „a”, „b” or „c” explosion hazard, in a gas environment belonging to explosion group I or in rooms with a risk of coal dust explosion. Meets the requirements for explosion-proof devices and can be used as a group I equipment in the M1 category.