Product Overview
Compact Dual-Lens Optical Detection Unit with M8 Connector and PinPoint Red LED
Condition
Used condition with minor exterior wear from previous mounting. Dual optical lenses are intact and clear. Cable pigtail and M8 3-pin connector are physically undamaged with clean, straight pins. Markings legible: WL2S-F211, SICK, 1015. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
SICK WL2S-F211 (part number 1023868) is a subminiature retro-reflective photoelectric sensor designed for high-density automated production and handling environments. Built with dual-lens optics and a concentrated PinPoint red LED emitter, it provides sharp optical alignment and reliable trip detection across its operating span. The compact housing integrates threaded brass mounting bushings and an M8 3-pin pigtail connector, delivering PNP dark-switching logic with sub-millisecond response times for packaging tracks, sorting arms, and automated assembly fixtures.
Key Features
- Optical system: Dual-lens retro-reflective detection
- Light source: PinPoint red LED (660 nm visible beam)
- Sensing range: 0.04 m to 0.8 m with standard reflector
- Supply voltage: 10 V DC to 30 V DC
- Output configuration: PNP switching, dark-switching mode
- Output current rating: Up to 50 mA
- Response speed: Under 0.6 ms at 800 Hz switching frequency
- Connection: Pigtail cable with 3-pin male M8 circular connector
- Housing construction: Blue ABS plastic with brass mounting bushings, IP67 and IP69K rated
Applications
- Positioning along miniature conveyor tracks to count small packages and cartons without false reflections.
- Mounting into confined indexing stations on packaging machinery where standard barrel sensors cannot fit.
- Connecting to a 24V DC PLC input card for dark-switched part-presence verification on feeder lines.
- Prototyping benchtop automated sorting rigs and custom maker automation projects needing tight optical trip detection.
Frequently Asked Questions
How is the M8 3-pin pigtail connector wired?
Standard 3-pin M8 wiring applies: pin 1 connects to DC power supply (+10 to 30 V DC), pin 3 connects to 0 V DC ground, and pin 4 provides the PNP switching output.
Does this sensor require a separate reflector to operate?
Yes. As a retro-reflective optical sensor, it requires a retro-reflective target positioned opposite the optical lenses within its 0.04 m to 0.8 m range to return the PinPoint beam.
Is a reflector or mounting bracket included?
Not included.
What condition is this unit in, and has it been electrically tested?
Visual inspection confirmed intact dual optical lenses, an undamaged housing with brass bushings, and straight M8 connector pins on the pigtail cable. Electrical function testing has not been performed.
Subminiature photoeyes like the WL2S squeeze serious optical precision into tight machine corners where bulky barrel sensors never had a prayer. Mount it, line up your reflector, and let that pinpoint red beam keep your line running true.
