Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Background Cutoff Sensor; Cutoff - 4 in (100mm) Cutoff (adjustable); Sensing Range - 0.04-4 in. (1-100mm); Voltage Range - 10-30VDC; Output Configuration - NPN; Connection Type - Cable; Connection Size - 9m (30 ft); Construction Style - Compact, Rectangular; Sensing Position - Side; Response Time - 2.5ms; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -5° to +131°F (-20° to +55°C)