WT12L-2B530A01 | SICK Laser Photoelectric Proximity Sensor 30–200 mmDescription The SICK WT12L 2B530A01 is a high precision photoelectric proximity sensor designed to detect objects within a 30200 mm range using a focused red laser beam. Its compact rectangular housing with a 5 pin M12 connector supports both PNP and NPN logic outputs for versatile control system integration. This sensor is typically used in automated industrial applications where precise object detection and background suppression are critical.