SICK GL6-P4111S46 Photoelectric sensors. SICK GL6-P4111S46 is a photoelectric sensors in the G6 family. SICK identifies this exact configuration as manufacturer article 1069178. The official technical record specifies Functional principle: Photoelectric retro-reflective sensor; Functional principle detail: With minimum distance to reflector (dual lens system); Sensing range max.: 0.03 m ... 7.2 m; Sensing range: 0.07 m ... 6 m; Polarisation filter: Yes; Light source: PinPoint LED 1). The linked SICK data sheet is specific to GL6-P4111S46.