Retro-Reflective Optical Sensor Dimensions L x W x H: 52.2 x 12.2 x 23.6 mm Operating temperature: -40...+60 °C Switching interval: 0...4000 mm Connection: Plug M12, 4-Pin Housing Material: VISTAL? Light type: Visible Red Light Output: PNP Protection class: III Protection rating: IP67 Sensor type: Retro-Reflective Sensor Switching type: Lighting On-/Lighting Off Operating voltage: 10...30 VDC