Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Background Cutoff; Cutoff - 1.6 in (40mm) Cutoff (adjustable); Voltage Range - 10-30VDC; Output Configuration - NPN; Connection Type - Connector, 4-pin Pico Pigtail; Connection Size - M8x1; Construction Style - Compact, Rectangular; Sensing Position - Side; Optimum Range - 0.59-1.57" (15-40mm); Response Time - 2.8ms; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 55degC (-4 to 131degF)