The Omron E3Z-T81K 5M Photoelectric Sensor offers Through-beam, 15 m Sensing distance, PNP Output, Pre Wired Cable, 5m Length, Infrared LED (870 nm) Light source, 12 to 24 VDC Power supply voltage, Light-ON/Dark-ON selectable mode. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3Z Series.