Omron E3F2-DS30C4-M1-M Dark-On NPN Photoelectric Sensor
Omron E3F2-DS30B4-M1-M Photoelectric Sensor, Through-Beam & Retro-reflective, 11.811inch Sensing Distance, IP67
Photoelectric Sensor Diffuse-Reflective Light ON/Dark ON NPN 0.1m 4-Pin