The SICK WT12L-2B550 (Part No. 1017904) is a compact and highly reliable photoelectric sensor designed for precise detection in fast-moving and demanding industrial environments. This model combines advanced laser sensing technology with rugged construction, making it suitable for a wide variety of automation applications.

At the core of the WT12L-2B550 is a visible-red laser with background suppression. The focused laser spot allows for highly accurate detection of very small parts or objects that move quickly through a process. With a sensing range from 30 mm up to 200 mm, it is well-suited for short-range but highly precise detection tasks, such as monitoring components on conveyor belts, identifying small packages, or ensuring correct part positioning in assembly lines.

The unit is built for durability. Its metal housing provides excellent protection against impacts and wear, while its IP67/IP69K rating ensures resistance to dust, moisture, and even high-pressure washdowns. This makes the sensor ideal for industries where cleaning and harsh conditions are unavoidable, including food processing, logistics, and heavy manufacturing environments.

Flexibility in electrical integration is another strong feature. The WT12L-2B550 supports both PNP and NPN outputs, giving system designers maximum freedom in matching the sensor to existing control architectures. Additionally, the output mode can be configured between light-ON and dark-ON switching using a simple control cable, enabling users to adapt the sensor’s logic to the needs of different processes without requiring additional hardware.

Performance is another area where this sensor excels. With a response time of just 200 microseconds and a switching frequency up to 2,500 Hz, it is capable of handling high-speed detection tasks with ease. This makes it perfect for automation lines where products or parts move quickly and reliable detection is critical to avoid errors or downtime.

For user convenience, the WT12L-2B550 includes a built-in potentiometer that allows for fine adjustment of the sensing threshold. This ensures optimal detection performance across varying materials, surfaces, and colors. The M12, 5-pin male connector ensures simple, standardized wiring, while optional mounting accessories make installation straightforward in virtually any setup.

The sensor is designed to operate reliably across a wide temperature range, from –10 °C to +50 °C, and can be stored in environments ranging from –25 °C to +75 °C. Its low current consumption also contributes to efficient system operation.

In summary, the SICK WT12L-2B550 is a laser proximity sensor that delivers a combination of precision, speed, durability, and flexibility. Whether used in packaging, robotics, manufacturing, or quality control, it offers dependable performance in detecting small and fast-moving objects, even under harsh industrial conditions.