The Omron E3G-MR19T-US is a retro-reflective photoelectric sensor from the E3G series, offering a 10 m sensing distance with a reflector. It features a selectable NPN or PNP output and selectable Light-ON or Dark-ON operation, running on a wide 12 to 240 VDC supply. The terminal block connection simplifies wiring in legacy panels.
Comparison with E3Z Series
The E3Z-T61K 2M is a through-beam sensor requiring separate emitter and receiver, while the E3G-MR19T-US is retro-reflective with a reflector. The sensing method differs, so a direct drop-in replacement isn't possible without changing the optical setup. The E3Z series offers IP67 and a shorter 12-24 VDC supply, whereas the E3G accepts 12–240 VDC and uses a terminal block.