The OMRON EE-SPW-411 is a compact through-beam photoelectric sensor set from the EE-SPW series, transmitting an infrared beam to detect opaque objects as small as 5 mm diameter over a 1 m range. It switches at 100 Hz with a 100 msec response time, so it's a fit for presence detection on slower conveyor lines or gate positions, not high-speed counting. Output is NPN, light-on mode, powered by 5-24V DC and switching up to 100 mA. The prewired 2 m cable brings bare wire termination, and the right-angle face orientation helps alignment in tight panel layouts.
The 100 msec response time is the slowest typical for a photoelectric sensor; it catches pallets, crates, or large parts moving at moderate speed but will miss fast-moving small parts on a pick-and-place. Switching frequency 100 Hz aligns with that — don't plan on using it for a high-speed label sensor. IP60 means the sensor is dust-tight but not protected against moisture. Keep it in dry indoor cabinets or shielded from washdown. The PBT body handles normal industrial vibration and moderate impact. NPN output (sinking) is standard on many Japanese-origin PLC input modules. If your controller expects a sourcing (PNP) signal, you'll need a conversion relay or an interface. The 100 mA max load is enough to drive a small relay or PLC input directly.