The Optex FTN-R is a battery-operated, short-range curtain sensor with adjustable detection ranges of 2m or 5m, ideal for securing front doors, windows, and balconies. Equipped with Super Multi Dimension Analysis (SMDA) logic, it optimizes sensitivity by analyzing each motion to reduce false alarms, making it highly adaptive to environmental changes. The FTN-R also features a detachable backbox compatible with most wireless transmitters, providing flexible integration for residential and commercial security systems.