Photoelectric Sensors (Thru-Beam, Block Style): Type - Photoelectric Thru-Beam Sensor Pair Sensor; Voltage - 10-30VDC; Output Mode - Dark Operate; Output Configuration - NPN; Connection Type - Cable; Connection Size - 2m (6.5ft); Construction Style - Rectangular; Beam Type - Visible Red; Sensing Range - standard - 4ft; Material - ABS; Response Time - 1ms On/1.5 ms Off; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Sensing Position - Side; Temperature Rating - -20 to 55degC (-4 to 131degF); Manufacturer Series - VS2 Series