Q20-2NLP-Q5 is a Q20-2 polarized retroreflective sensor with visible red LED. The Q20-2 polarized retroreflective sensors offer excellent sensing performance in a compact plastic housing which are easily integrated into tight spaces. Threaded brass inserts provide stable mounting points, and the bright indicators provide user feedback of the sensor status. The single turn gain potentiometer, LO/DO switch, and bright indicator LEDs provide easy alignment and configuration for reliable sensing. Universal rectangular housing ideal for global manufacturing with best-in-class optical to mechanical alignment (patent pending). Polarized retroreflective models for one-sided installation with a retroreflective target are ideal for detecting dark and shiny targets. Best-in-class optical to mechanical alignment for consistent lock & load mounting with visible red LEDs for simple and precise alignment. Protected against reverse polarity and transient voltages.