The ABO-5L is a reflective infrared detector that can be applied to alert areas near entrances, exits, windows, passages and stairs. It has an integrated transmitter and receiver design that uses lens reflection to simplify wiring while keeping a thin, elegant appearance. The detector has a detection distance of up to 5 meters, uses infrared LEDs, has a response time over 50ms, and can output alarm signals through a dry contact relay that handles 30VAC/DC and 0.5A loads.