Functional principle: Through-beam photoelectric sensor Dimensions (W x H x D): 15.6 mm x 48.5 mm x 42 mm Housing design (light emission): Rectangular Sensing range max.: 0 m … 20 m Sensing range: 0 m … 15 m Focus Approx.: 1.5° Type of light: Visible red light Light source: LED Light spot size (distance): Ø 220 mm (15 m) Angle of dispersion Approx.: 1.5° Wave length: 633 nm Adjustment: None