Retro-reflective sensor RL28-55-V/82b/105/110 RL28-55-V/82b/105/110 Foreground suppression, ideal for recording shrink-wrapped objects. Powerful push-pull output. Ultra-bright LEDs for power on, weak signal indication and switching state. Not sensitive to ambient light, even with switched energy saving lamps. Waterproof, degree of protection IP67. Protection class II