Overview
The Sick WT2S-N131 is a miniature photoelectric proximity sensor from Sick’s W2 Slim product line. This compact sensor delivers precise object detection using background suppression technology, making it ideal for applications requiring reliable foreground/background discrimination in tight spaces. The rectangular slim housing and adjustable focus deliver excellent size-to-performance ratio for control cabinets and compact machine designs.
Key Features
- Miniature rectangular slim housing (7.6 mm × 25.1 mm × 12.5 mm)
- Background suppression for reliable foreground detection
- PinPoint LED light source with visible red light (660 nm wavelength)
- Sensing range: 1–30 mm with adjustable focus at 15 mm
- 3-wire cable connection (2 m standard length)
- LED signal strength indicator for setup and diagnostics
Technical Specifications
- Product Family: W2 Slim
- Sensor Type: Photoelectric proximity sensor
- Detection Principle: Background suppression
- Sensing Range: 1–30 mm
- Light Source: PinPoint LED, red light 660 nm
- Focus: Adjustable (15 mm standard)
- Light Spot Size: Ø 1.5 mm at 15 mm distance
- Housing: Rectangular, slim design with metal sleeves
- Dimensions (W × H × D): 7.6 mm × 25.1 mm × 12.5 mm
- Mounting: M3 bolt holes (Ø 3.2 mm)
- Connection: 3-wire cable, 2 m length
- Manufacturer Part Number: 1022663
Typical Applications
- Small parts detection and positioning in automated assembly
- Label and film edge detection
- Precision package and envelope sorting
- Food and beverage line proximity sensing
- Control cabinet and tight-space installations
- Object presence verification on conveyor systems
Compatibility & Replacements
Compatible With
- Programmable Logic Controllers (PLCs) with standard NPN/PNP digital inputs
- Industrial control systems supporting 3-wire photoelectric sensor inputs
- Motion control and packaging machinery platforms
- Automation systems requiring red-light proximity detection
Replaces / Drop-In Replacement For
- Direct replacement within W2 Slim photoelectric sensor family
- Verify input signal compatibility (NPN vs. PNP) with your control system before ordering
Works With
- Allen-Bradley, Siemens, Mitsubishi, and Omron PLC digital input modules
- Standard industrial automation software and control platforms
- 3-wire sensor input protocols (24 VDC typical)
