W12L-2 series Sick Photoelectric Proximity Sensors

The Sick W12L-2 series of photoelectric proximity sensors features laser technology that is optimally designed for individual applications. These sensors provide reliable object detection, fast response times and are enclosed in a rugged metal housing, which is ideal for use in all types of industrial applications.

At a glance

  • Best-in-class retro-reflective laser performance in a metal housing
  • Teflon® coating available
  • Precise autocollimation optics
  • Adjustable focus on retro-reflective sensors
  • High switching frequency of 2.5 kHz
  • Connection via cable or rotatable connector
  • Mounting options with through holes, blind holes, oblong holes and dovetail
  • Laser protection class 1 or 2

Your benefits

  • Reliable object detection of small objects due to superior ASIC (application-specific integrated circuit) technology combined with innovative laser technology
  • Red light laser technology provides quick and easy alignment of sensor
  • Rugged metal housing (available with Teflon® coating) withstands harsh environments
  • Laser protection class 1 or 2 for eye safety
  • Resistance to optical interference reduces false readings and downtime
  • Rotatable connector provides easy installation

Baca Juga: Magnetic Proximity Sensor Sick MM type


Model WT12L-2B510 WT12L-2B530 WT12L-2B550
Sensor/ detection principle Photoelectric proximity sensor, Background suppression
Dimensions (W x H x D) 15 mm x 49 mm x 41.5 mm
Housing design (light emission) Rectangular
Sensing range max. 20 mm … 50 mm 1) 30 mm … 200 mm2) 30 mm … 200 mm3)
Focus 45 mm 45 mm 100 mm
Type of light Visible red light
Light source Laser4)
Light spot size (distance) Ø 0.1 mm (45 mm) Ø 0.1 mm (45 mm) Ø 0.2 mm (100 mm)
Wave length 650 nm
Laser class 2 (EN 60825-1:2014, IEC 60825-1:2007) 5)
Adjustment None Potentiometer Potentiometer
Special applications Detecting small objects, Detection of objects moving at high speeds

1) Object with 6 % reflectance (referred to standard white, DIN 5033).

2) Object with 18% remission (based on standard white DIN 5033)

3) Object with 18% remission (based on standard white DIN 5033).

4) Average service life: 50,000 h at TU = +25 °C.

5) Pulse length 4 μs, max. pulse power < 5,0 mW.

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