Retroreflective sensor RL28-55-V-Z/49/76a/82b/116 RL28-55-V-Z/49/76a/82b/116 Foreground suppression, ideal for detecting sheet-shrink-wrapped items Ultra bright LEDs for power on, weak signal indication and switching state Programmable time function GAN, GAB, IAB and GAN-IAB as dual function Insensitive to ambient light, even with energy-saving lamps switched on Waterproof, protection degree IP67 Protection class II