Leuze-Electronic-KRTL-3B-4-3111-S8-Red-Laser-Contrast-Scanner-Leuze-Electronic-50110592-A-contrast-scanner-that-uses-a-red-laser-light-to-produce-a-small-light-spot-that-can-precisely-detect-&-compare-contrast-differences-&-output-the-results-with-minimal-signal-jitter-The-sensor-employs-static-2-point-teach-in-&-features-remote-teach-keyboard-lockout-&-pulse-stretching-via-pin-2-Switching-threshold-can-be-adjusted-using-Easy Tune-via-the-Teach-button-Leuze-Electronic-50110592-KRTL-