SICK WL100L-F1131S02 — W100 Laser Retro-reflective Photoelectric Sensor
Overview

The WL100L-F1131S02 is a compact, high-performance retroreflective laser sensor from SICK’s W100 Laser series. It uses a dual-lens configuration to support a wide detection range with reliable background suppression. Designed for space-constrained industrial setups, this miniature sensor blends high precision, configurability, and durable design.
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Key Features & Specifications
Parameter Detail
Sensing Principle Retroreflective, dual-lens (requires a reflector)
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Sensing Range 0.08 m (minimum) to 12 m (maximum, with reflector)
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Light Source / Wavelength Red laser (~650 nm)
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Switching Output / Logic PNP switching output
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Switching Mode Light / Dark (user selectable)
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Adjustment Sensitivity / threshold adjustable via potentiometer
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Dimensions (W × H × D) 11 mm × 31 mm × 20 mm
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Housing Type Rectangular / miniature form factor
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Connector / Cable Cable with M12 4-pin male connector, 0.2 m cable length
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Spot Size (at 10 m) Approx. Ø 12 mm
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Protection / Durability IP65 (suitable for industrial environments)
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Laser Safety Class Class 1 (eye safe)
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Typical Applications Object detection in compact spaces, background suppression tasks, retroreflective sensing in automation lines
Technical Highlights & Benefits

Long detection reach in a miniature form
Despite its compact size, it supports up to 12 m sensing range when paired with a suitable reflector.

Dual-lens design for background suppression
Improves signal reliability by rejecting background surfaces and focusing only on reflector returns.

User-configurable switching logic
Light/dark mode and sensitivity tuning let it adapt to varying application conditions.

Fast response and stable performance
The laser emitter and optical design ensure quick switching and stable detection under changing lighting.

Robust industrial design
Designed to withstand common industrial conditions (e.g. dust, vibration) via IP65 protection and sturdy housing.

Compact & space-saving
Its miniature dimensions (11 × 31 × 20 mm) make it suitable for tight mounting spaces.