Retroreflective sensor MLV41-54-G/25/115/123/136 MLV41-54-G/25/115/123/136 Sturdy series with a corrosion-resistant metal casing Reliable sensing of reflective items and clear glass Two machines in one: clear object detection or reflection mode with long distance TEACH-IN button to set contrast detection levels Automatic adjustment in case of contamination in contrast detection mode Noise-resistant: reliable operation under any circumstances