5pcs/lot EE-SX4320 Transmission type photoelectric switch Slot type photoelectric sensor 2mm substitute EE-SX4134
https://www.vogueparade.com/shopping/EN/150412/1/1005003420068483/5pcslot-ee-sx4320-transmission-type-photoelectric-switch-slot-type-photoelectric-sensor-2mm-substitute-ee-sx4134//