SICK WL24-2B240 Photoelectric Retro-Reflective Sensor

$ 184.00

Long-range SICK WL24-2B240 retro-reflective sensor offering stable 22 m detection, fast response, and durable IP67 design for demanding industrial automation.

SKU SICK-1017859 Category

Product Description

SICK WL24-2B240 Photoelectric Retro-Reflective Sensor – Long-Range Precision Detection

The SICK WL24-2B240 photoelectric retro-reflective sensor is built for stable long-distance detection in demanding industrial environments. Its dual-lens design and high-visibility red LED enable dependable operation across sensing distances of up to 22 meters, providing consistent performance even when dust, vibration, or alignment variations are present. The rugged metal housing and IP67 sealing make it suited for harsh conditions, while adjustable sensitivity and output modes allow smooth integration into diverse automation setups. With flexible switching configurations and strong optical performance, the WL24-2B240 delivers reliable detection for applications involving conveyors, packaging lines, and automated handling systems.

The WL24-2B240 is engineered to maintain detection stability where reliability matters most. Its optic system is designed to handle long ranges without sacrificing accuracy, making it ideal for fast-moving goods or large detection fields. The built-in heating on the front screen prevents fogging in cold or humid areas, ensuring continuous operation. Fast response behavior supports high-speed automation, while adjustable delay functions help fine-tune timing for challenging workflows. The sensor’s selectable NPN/PNP and light/dark switching modes give engineers flexibility when integrating into existing control systems. With a sturdy zinc die-cast body and protected electronics, it delivers consistent performance and longevity in industrial environments.

Why WL24-2B240?

The WL24-2B240 stands out because it delivers long-range detection with remarkable consistency, even in tough industrial environments. Its dual-lens optical system, bright red LED, and durable metal housing give it the confidence to perform where other sensors become unstable. If you need a sensor that keeps working through dust, vibrations, varying temperatures, or wide detection gaps, this model provides dependable performance without constant adjustments.

What Problem Does It Solve?

This sensor eliminates unreliable object detection in areas where distance, lighting, or environmental conditions typically disrupt accuracy. It solves the challenge of maintaining stable switching over long ranges while preventing issues like fogged optics, false triggers, or sensitivity drops. Whether it’s fast conveyor lines, reflective surfaces, or outdoor-exposed equipment, the WL24-2B240 ensures detection stays accurate and consistent with minimal maintenance.


Key Features & Specifications – SICK WL24-2B240 (Part Number: 1017859)

Feature Details Benefit
Sensing Principle Retro-reflective photoelectric sensor with dual-lens system Ensures stable long-distance detection with high immunity to misalignment and environmental variation
Sensing Range 0–15 m typical, up to 22 m max (with PL80A reflector) Covers long conveyors, wide detection gaps, and large object profiles
Light Source Visible red LED Easy alignment and visual confirmation during installation
Switching Output Selectable NPN or PNP Integrates effortlessly with various PLC and control systems
Switching Mode Light/dark switching selectable Adapts to different detection logic requirements
Response Time ≤ 500 µs Reliable operation in high-speed automation and fast-moving processes
Switching Frequency Up to 1,000 Hz Best suited for rapid detection tasks without signal delay
Adjustment Method Potentiometer + mode selector switches Allows quick tuning without software or tools
Time Functions ON delay & OFF delay (0.5–10 s, adjustable) Prevents false triggering and stabilizes detection on noisy lines
Front Screen Heating Yes (for +5 °C to +15 °C) Prevents condensation and maintains performance in humid or cold environments
Housing Material Zinc die-cast metal High durability in industrial, dusty, or high-vibration settings
Optics Material PMMA plastic Clear and robust optical window for consistent light output
Protection Rating IP67 Suitable for washdown, outdoor exposure, and dusty facilities
Connection Type Terminal connection with M16 gland Secure wiring for fixed installations
Operating Voltage 10–30 V DC Flexible power compatibility across industrial equipment
Operating Temperature –40 °C to +60 °C Reliable in cold storage, outdoor, and heated environments
Polarization Filter Yes Ensures accurate detection of shiny or reflective objects
Test Input Sender OFF control Enables diagnostics and maintenance testing
Certifications CE, UKCA, UL, RoHS, ACMA Compliant with global industry and safety standards

Download SICK WL24-2B240 (1017859) Datasheet

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