What Ships in the Carton
The Omron E3Z-G61 2M is a current-production grooved-type (fork) through-beam sensor with built-in amplifier — no external controller needed. It ships pre-wired with a 2 m cable, so the kit is complete for a direct install into a 25 mm maximum gap application. The output is NPN open collector, and the light source is an infrared LED.
How It Stacks Against E3SGS3E4
The Omron E3SGS3E4 fork sensor offers a 30 mm gap with selectable Light-ON/Dark-ON, NPN output, and a 2 m pre-wired cable. The E3Z-G61 has a 25 mm maximum gap and no selectable operation mode, making it a fixed-logic alternative for gaps under 25 mm.