Retro-Reflective Optical Sensor Operating temperature: -25...+80 °C Switching interval: 35...5000 mm Connection: Plug M12, 4-Pin Housing Material: Stainless Steel Light type: Red Output: PNP Protection class: III Protection rating: IP69K Sensor type: Retro-Reflective Sensor Switching type: Dark ON Operating voltage: 10...30 VDC