The SICK GL6-N4211 (Part No. 1059631) is a high-performance, compact retro-reflective photoelectric sensor designed for reliable detection in a wide range of industrial environments. Part of the trusted G6 series, it combines compact size, rugged durability, and advanced optics to provide exceptional sensing performance.

This sensor uses a dual-lens retro-reflective principle with integrated polarization filters, ensuring reliable detection even with reflective or glossy surfaces. Its sensing range is highly versatile, covering distances from as close as 0.03 m to 6 m when used with the proper reflector. This wide range makes it suitable for applications on conveyor systems, packaging machines, and automated production lines.

Equipped with a red pinpoint LED emitter at 650 nm, the GL6-N4211 produces a narrow and visible light spot, which ensures precise object targeting. With a spot size of just 8 mm at 350 mm distance, it excels in applications requiring pinpoint accuracy, such as detecting small parts or verifying object presence in tight spaces.

The device’s compact housing is made from durable ABS/PC material, offering long-term resilience while maintaining a lightweight structure. Its IP67 protection rating guarantees resistance against dust and temporary immersion in water, making it dependable for use in harsh factory conditions. In addition, the sensor can operate in a wide temperature range from –25 °C to +55 °C, ensuring stable performance across varying environments.

The GL6-N4211 features an M8 4-pin male connector, simplifying integration into existing automation systems. Its output is an NPN open-collector with selectable light/dark switching, offering flexibility depending on application requirements. With a rapid response time of less than 625 µs and a maximum switching frequency of 1 kHz, the sensor is well-suited for detecting fast-moving objects without delay.

To enhance application flexibility, the sensor includes a 270° adjustable potentiometer for sensitivity tuning. This adjustment capability allows fine control over detection thresholds, reducing the likelihood of false triggers and improving performance in complex or variable conditions.

In summary, the SICK GL6-N4211 (1059631) delivers precise, reliable, and high-speed detection in a compact design. Its extended sensing range, rugged construction, and fine-tuning options make it ideal for use in material handling, logistics, packaging, and other industrial automation tasks. Whether for close-range detection of small components or monitoring longer conveyor sections, this sensor provides the dependable performance expected from SICK products.