SICK GTE6-N1232 Photoelectric sensors. SICK GTE6-N1232 is a photoelectric sensors in the G6 family. SICK identifies this exact configuration as manufacturer article 1081668. The official technical record specifies Functional principle: Photoelectric proximity sensor; Functional principle detail: Energetic; Sensing range max.: 30 mm ... 900 mm; Sensing range: 40 mm ... 760 mm; Light source: PinPoint LED; Type of light: Visible red light. The linked SICK data sheet is specific to GTE6-N1232.