The Optex FTN-ST is a hardwired short-range curtain sensor, offering adjustable detection up to 2m or 5m using switchable lenses. Featuring Super Multi Dimension Analysis (SMDA) logic, it optimizes sensitivity and reduces false alarms by analyzing motion before signaling an alarm. With enhanced environmental adaptability, the FTN-ST is perfect for protecting front doors, windows, and balconies, making it an ideal addition to residential or commercial security systems. It also includes pet immunity and double conductive shielding for reliable performance.