The SICK 1059543 (GRSE18S-E1336) is a diffuse photoelectric sensor engineered for dependable object detection in tough industrial environments. Part of the GRSE18 family, it combines compact dimensions, stainless steel durability, and high sensing accuracy to meet the demands of modern automation systems.

This model uses a diffuse reflection operating principle, which means it detects light reflected directly from the surface of an object without the need for an external reflector. It provides a sensing range of 50 mm to 600 mm, making it ideal for medium-range applications such as part presence verification, conveyor monitoring, and packaging inspection. The built-in background suppression feature enhances reliability by preventing interference from shiny or reflective backgrounds, ensuring stable performance in diverse environments.

The GRSE18S-E1336 is equipped with a visible red LED emitter operating at 650 nm. The sharply defined light spot makes it easy for operators to align the sensor quickly during installation, while also ensuring precise detection of small or irregularly shaped items. The visible beam provides a clear reference point for fine-tuning, reducing setup time and minimizing errors.

Performance is another strong advantage of this model. Featuring an NPN light-switching output, the sensor activates its output when reflected light is detected from a target object. It supports output currents up to 100 mA, allowing direct integration with industrial control systems. With a response time of less than 500 µs and a switching frequency of up to 1,000 Hz, it is particularly suited for applications requiring fast and repeatable detection, such as high-speed part counting, sorting, or product verification.

Built to withstand harsh operating conditions, the sensor comes in a stainless steel M18 cylindrical housing. Measuring 18 mm in diameter, this rugged enclosure is designed for mechanical strength and long service life. Rated to IP67, it is resistant to dust ingress and temporary water immersion, making it reliable for use in demanding environments, including areas subject to frequent cleaning or mechanical stress.

For user convenience, the sensor includes LED status indicators. A green LED displays power supply status, while a yellow LED shows the switching state, simplifying alignment, monitoring, and troubleshooting.

In summary, the SICK GRSE18S-E1336 delivers medium-range diffuse detection with excellent stability, high-speed switching, and robust stainless steel construction. Its combination of precision optics, fast response, and durable design makes it an ideal choice for automation engineers seeking reliable performance in space-efficient and industrially tough sensing solutions.