Proximity Sensors (Inductive, Tubular Style): Type - Photoelectric Retroreflective, Polarized Sensor; Sensing Range - 20ft (6m); Voltage Range - 20-250VAC; Output Mode - Light Operate; Output Type - SPST Solid State Switch; Connection Type - Connector, 4-pin Micro AC; Connection Size - 1/2-20UNF; Construction - Tubular, Threaded; Diameter - 30mm; Sensing Position - End; Beam Type - Visible Red; Material - Body - Thermoplastic; Enclosure Rating NEMA - NEMA 6P; Enclosure Rating IEC - IEC IP69K; Temperature Rating - -40 to 70degC (-40 to 158degF); Response Time - 16ms