E3T-SL24-RT1 5M Omron ⍾ 659668 ⍾ E3TSL24RT15M

Photoelectric sensor, miniature side-view, diffuse reflective, 5-30mm, DC, 3-wire, PNP, dark-on, M12 pigtail connector

Photoelectric sensor, diffuse, 30mm, DC, 3-wire, NPN, light-on, flat, 2m cable (requires E39-L119 bracket)

Photoelectric sensor, flat, diffuse 5-30mm, Light-ON, NPN, 2m cable (requires M3 screw & bracket)