Fiber optic sensor RLK61-LL-IR-Z/31/115 RLK61-LL-IR-Z/31/115 Cost-efficient series for standard tasks in a unique design Compact build Wide variety of mounting options due to cubic housing design with M30 thread 360° highly visible LEDs Programmable ON-delay, OFF-delay, and One-shot timers Version suitable for universal voltages Relay output Includes universal fiber adapter kit