The SICK WT18X-3P920 is a miniature cylindrical photoelectric sensor designed for high-precision object detection in tight spaces. It uses background suppression (BGS) technology to accurately detect objects at a fixed range while ignoring surfaces beyond that distance, making it ideal for applications requiring reliable sensing regardless of color or reflectivity.
Key Parameters
Parameter Specification
Sensing Principle Background Suppression (BGS)
Sensing Range 20–92 mm (adjustable or fixed, model-dependent)
Light Source Red visible LED
Output Type PNP, Normally Open (NO)
Connection M8, 3-pin quick-disconnect connector
Supply Voltage 10–30 V DC
Housing Material Stainless steel (V4A / 316L)
Protection Rating IP67 (dust-tight and waterproof)
Response Time < 1 ms
LED Indicators Red/green status LEDs for output and power
Operating Temperature -25°C to +55°C
Applications Packaging machinery, electronics assembly, conveyor systems, and robotic handling.