Photoelectric Sensors (Background Rejection, Block Style): Type - Ultrasonic Sensor; Sensing Range - 2000mm (78.74 in.); Voltage Range - 10-30V DC; Connection Type - Cable; Connection Size - 2m (6.5 ft); Construction Style - T-Style Housing, Threaded Nose; Sensing Position - Right Angle; Response Time - 92 or 222 ms (selectable); Material - PBT Polyester; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Switching Frequency - 174 kHz; Temperature Rating - -40 to 70degC (-40 to 158degF); Nominal Dimensions - Dia.xDxH 1.57x1.77x2.03" (40x45x51.5mm), 30mm Nose