SICK VS/VE18-4P3140V Through-beam photoelectric sensor. SICK VS/VE18-4P3140V is a archive in the V18 family. SICK identifies this exact configuration as manufacturer article 6035499. The official technical record specifies Functional principle: Through-beam photoelectric sensor; Dimensions (W x H x D): 18 mm x 18 mm x 83 mm; Housing design (light emission): Cylindrical; Housing length: 83 mm; Thread diameter (housing): M18 x 1; Optical axis: Axial. The linked SICK data sheet is specific to VS/VE18-4P3140V.