SICK GTE6-F2431V Photoelectric sensors. SICK GTE6-F2431V is a photoelectric sensors in the G6 family. SICK identifies this exact configuration as manufacturer article 1086173. The official technical record specifies Functional principle: Photoelectric proximity sensor; Functional principle detail: Energetic; Sensing range max.: 30 mm ... 900 mm 1); Sensing range: 40 mm ... 760 mm; Light source: PinPoint LED 2); Type of light: Visible red light. The linked SICK data sheet is specific to GTE6-F2431V.