Sick GTB6-P0231S79 Photoelectric Sensor

The Sick GTB6-P0231S79 combines compact design with advanced detection features, making it a go-to choice for engineers who demand accuracy and reliability. Built with a photoelectric proximity sensor using background suppression, it delivers consistent object detection even in complex visual environments. The sensor supports a sensing range of 50 mm to 220 mm, extendable up to 400 mm, offering remarkable flexibility in installation across different industrial zones. Powered by a supply voltage of 10 V DC to 30 V DC, the GTB6-P0231S79 maintains low power consumption at just 30 mA, making it both efficient and cost-effective. It emits a visible red light using a PinPoint LED, with a concentrated Ø6 mm spot size at 100 mm and a wavelength of 625 nm. The switching frequency of 500 Hz and response time under 1.2 ms ensures fast, reliable signal output, critical for high-speed production lines. Its PNP digital output can be toggled between light and dark modes through a built-in selector. The sensor is housed in a robust ABS/PC plastic body, sized at 12 mm x 31.5 mm x 21 mm, and comes with a 4-pin M8 male connector for quick plug-and-play wiring. Rated IP67, it is well-protected against dust and water, and can operate reliably in temperatures from –25 °C to +55 °C. Backed by Sick's legacy of quality, this model is widely trusted by OEMs, machine builders, and system integrators for dependable, high-speed object detection.

The Sick WL4S-3F2130 Photoelectric Sensor is widely used in real-world applications like object counting, packaging, and part presence detection. For example, on conveyor systems in bottling plants, this sensor ensures that each bottle is correctly positioned before capping. In automotive lines, it confirms the presence of components before robotic welding or assembly begins. This model is particularly useful in factories with variable lighting and dusty conditions. It performs well even with reflective or dark-colored objects, thanks to its background suppression technology. For junior maintenance engineers and students learning automation, it’s easy to mount, align, and troubleshoot. Senior engineers value its accuracy and durability in reducing machine downtime. Whether you're upgrading a line or building a new automation system, the WL4S-3F2130 offers dependable detection with minimal configuration. Its high response speed, rugged IP67 housing, and Sick’s global support make it a smart choice for long-term industrial use.