The Takex PA-4810 Quad PIR Motion Sensor features a quad element pyro sensor combined with fuzzy logic for exceptional accuracy. Its precise mirror optics ensure high sensitivity and dependable performance, while selectable twin or quad sensing allows fine motion detection tailored to your needs. This device includes a viewfinder for easy and accurate setup, along with a trouble alarm and alarm memory for enhanced security management. Remote LED control adds convenience. Upgrade your security system with this reliable sensor today!