The BANNER ENGINEERING Q45VR3LP is a polarized retro-reflective photoelectric sensor from the Q45 series, featuring a detection range of 0.15 to 6 meters. It operates with an input voltage of 12-250 VDC or 24-250 VAC and provides an SPDT electromechanical relay output. The sensor comes with a 2-meter (6.5 ft) cable.