The Q85VR3LP-T9 is an AC/DC polarized retroreflective Photoelectric Sensor with programmable timer output. The Q85 series 30872 is compact, economical, polarized retroreflective mode photoelectric sensor in rugged NEMA-6P rated ABS housings. It is ideally suited to conveyor control and similar applications. The timing logic functions offered in the T9 models provide additional control capabilities over and above the basic models ON/OFF (no delay) function. The special lens of Q85 sensors polarizes the emitted light and filters out unwanted reflections, allowing use in many applications that are otherwise unsuited to retroreflective sensing. The Q85s maximum range of 15ft (4.6m) is obtained using the Banner model BRT-3 3-inch diameter round retroreflector. All Q85 sensors feature a convenient wiring chamber with two conduit entrances for ease of connection, positioning and mounting.