E3RB-TN21 Omron ⍾ 378975 ⍾ E3RBTN21 ⍾ E3RB2005E

Photoelectric sensor, M18 radial, metal body, red LED, retro-reflective, 0.1-4m, NPN, L-ON/D-ON selectable, 2m cable

Photoelectric sensor, M18 threaded barrel, radial type, metal, red LED, retro-reflective, 4 m, PNP, Light-ON/Dark-ON, M12 connector

Photoelectric sensor, M18 radial, metal body, red LED, diffuse, 700mm, NPN, L-ON/D-ON selectable, M12 connector