Detection range: Dependent on fibers selected  , Light source: IRED, Light type: modulated infrared light , 850 nm, Signal output: 2 push pull (4 in 1) outputs, short circuit protected, reverse polarity protected, Switching type: light/dark on, switchable, Connection: 4 pin, M12 x 1 connector, Operating voltage: 10 ... 30 V DC, Ambient temperature: 40 ... 55 DegreesC ( 40 ... 131 DegreesF)