The SICK GL2S-P5311 (Part No. 1064359) is a high-performance miniature photoelectric retro-reflective sensor, purpose-built for modern industrial automation where both space efficiency and detection precision are critical. Part of SICK’s compact G2 series, this sensor combines powerful optical technology, fast response times, and robust durability in a design that fits even the tightest installation environments.

Measuring only 7.7 mm × 21.8 mm × 13.5 mm, the GL2S-P5311 is exceptionally compact, making it ideal for machinery or conveyor layouts with limited space. The dual-lens retro-reflective system provides reliable object detection even when mounted very close to the reflector, enhancing flexibility in placement while maintaining performance consistency.

The sensor employs PinPoint LED technology, emitting a visible red light beam at 640 nm. This beam is finely focused, producing a detection spot of roughly 11 mm in diameter at a distance of 250 mm. The precise light spot makes alignment simple and supports accurate detection of small, shiny, or irregularly shaped objects. This visibility not only improves setup efficiency but also helps maintenance teams verify operation quickly.

From a performance standpoint, the GL2S-P5311 is engineered for speed and reliability. Its PNP light-switching output responds in under 0.6 ms and operates at switching frequencies up to 800 Hz. This makes it well suited for fast-moving production lines, robotic systems, and packaging machinery where rapid, reliable detection is essential. Built-in electronic protections—including reverse-polarity, interference suppression, over-current, and short-circuit resistance—ensure stable long-term operation and minimize the risk of unexpected downtime.

The GL2S-P5311 is also designed with durability in mind. Its rugged ABS plastic housing carries an IP67 protection rating, guarding against dust ingress and water exposure. This makes the sensor suitable for challenging industrial environments where moisture, dirt, and vibration are common. Additionally, its wide supply voltage range of 10–30 V DC and operating temperature span from –25 °C to +50 °C provide flexibility for use in diverse applications and climates.

Energy efficiency is another advantage, with a current consumption of only 20 mA. Despite its low power draw, the sensor delivers strong output capabilities, handling loads of up to 50 mA with consistent reliability. A built-in polarization filter further enhances detection accuracy by minimizing interference from unwanted reflections.

In summary, the SICK GL2S-P5311 offers a powerful combination of compact size, optical precision, fast response, and rugged reliability. It is an excellent choice for automation, robotics, and material handling systems where space is limited, but performance and durability cannot be compromised.