Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective; Sensing Range - 21ft (6.5m); Voltage Range - 20-140VAC/DC; Output Mode - Light Operate; Output Configuration - PNP-MOSFET; Connection Type - Connector, 4-pin Micro Pigtail; Connection Size - 1/2-20UNF; Construction Style - Compact, Threaded Nose 18mm; Sensing Position - Side; Response Time - 16.6ms; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -25 to 55degC (-13 to 131degF)