The Omron E3ZS-T81A is a single-beam Type 2 safety sensor, PNP safety outputs, rated 0.2 to 3 m operating range, and 18 mm minimum object resolution. The green alignment indicator on the receiver makes aiming during setup straightforward—you get a steady light when the beam is true.
With a 3 m range and 18 mm object resolution, this sensor catches things as small as a finger point at the full span—useful for point-of-presence guarding where you need to stop the machine before someone gets too close. The 0.2 m minimum range means you can mount it tight against the hazard zone if space is short. PNP outputs sink directly into a safety PLC or relay module, so no level-shifting in the cabinet.
This part is current production—the line's still running at Omron, so no last-time-buy scramble. Out here in the grease that means you order one up and it ships like any other catalog item.