The Optex FTN-RAM is a battery-operated, short-range curtain sensor with anti-masking, designed to protect areas like front doors, windows, and balconies. With adjustable detection ranges of 2m or 5m, it accommodates most wireless transmitters through its detachable backbox. Featuring Super Multi Dimension Analysis (SMDA) logic, the FTN-RAM provides enhanced digital analysis, animal tolerance, and reliable intrusion detection, making it ideal for versatile security needs.