Retroreflective sensor RL28-54-G-Z/49/116 RL28-54-G-Z/49/116 Detects transparent objects, i.e., clear glass, PET, and transparent films TEACH-IN switch for setting contrast detection levels Automatically adjusts in case of soiling in contrast detection mode Ultra bright LEDs for power on, weak signal indication, and switching state Flashing power on LED in case of a short-circuit Not sensitive to ambient light, even with energy-saving lamps Pulsed time element off-delay Waterproof, protection degree IP67 Protection class II