The Takex TAK-PIR-T40NAM is a high-performance anti-masking PIR sensor designed for long-range vertical curtain detection. Its triple mirror optical system and advanced signal processing provide precise 40m x 3.2m coverage while helping reduce nuisance alarms from small animals. With selectable operation modes, adjustable detection areas, anti-masking protection and an IP55-rated indoor/outdoor design, it delivers dependable perimeter security for demanding environments.