Connection: M12 connector Housing materials: housing: aluminium, window: PC Electrical design: DC PNP Protection: IP 65 SKU TIONIK2ZWOYB20 Type of light: Infrared light 950 nm Operating voltage: 24 V DC (19.2...28.8) Shortcode: OYA1210-20-4-18-P-1-B Product Name: OY819S Ambient temperature: 0...55 °C Display: Transmitter: 3 LED , Transmitter: 1 7-segment LCD display , Receiver: 3 LED , Receiver: 1 7-segment LCD display