Retro-Reflective Optical Sensor Operating temperature: -25...+55 °C Switching interval: 50...7000 mm Connection: Plug M12, 4-Pin Housing Material: Brass (CuZn) / Nickel-Plated / Polycarbonate (PC) 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