Retro-Reflective Optical Sensor Dimensions L x W x H: 31 x 11 x 20 mm Operating temperature: -25...+55 °C Switching interval: 0...4000 mm Connection: Plug M8, 4-Pin Housing Material: ABS Light type: Visible Red Light Output: PNP Protection rating: IP67 Sensor type: Retro-Reflective Sensor Switching type: Lighting On-/Lighting Off Operating voltage: 10...30 VDC