KEYENCE’s built-in amplifier photoelectric sensors, including PZ-M31, PZ-M11, PZ-G102N, PZ-G101P, PZ-G101N, PZ-G62N and PZ-G61P, remain the preferred general-purpose detection solution for factory automation across electronics assembly, packaging machinery, logistics conveying and automotive component manufacturing.

The PZ-G and PZ-M families feature compact rectangular housings, IP67 protection rating and wide operating voltage range of 10–30 VDC. Equipped with adjustable sensitivity trimmer and switchable Light-ON/Dark-ON output modes, these sensors support flexible on-site commissioning. Both NPN and PNP output variants are available to match different PLC control systems, greatly simplifying electrical integration for system integrators.

Among the lineup, PZ-M11 and PZ-M31 are multi-reflective sensors delivering stable detection performance with minimum interference from target colour and tilt angles, ideal for detecting workpieces with uneven surface reflectivity. The PZ-G series models cover through-beam and diffuse reflective types. PZ-G101N / PZ-G101P and PZ-G102N offer reliable short-to-medium distance object detection, while PZ-G61P and PZ-G62N excel in compact installation spaces commonly seen in electronic equipment and small automated jigs.

All models adopt robust mechanical structure with excellent vibration and shock resistance, capable of steady operation under harsh workshop conditions with dust and occasional splash. Clear dual-colour indicator lights allow technicians to judge stable sensing status intuitively during routine maintenance.

Machine builders and automation integrators favour these PZ series sensors for their consistent repeatability, easy mounting and worldwide component availability. As demand for flexible manufacturing equipment continues rising, KEYENCE PZ-M and PZ-G photoelectric sensors will continue serving as a cost-effective and proven detection choice for global automation projects.