The DD669AM is a dual technology ceiling mount motion sensor with anti-masking. It will prevent attempts to mask the sensor while reporting these attempts to the panel. Its 18 curtains offer maximum detection including full undercrawl detection capability throughout a protected area of up to 20m in diameter. The unique mirror optics technology is a step and gliding focus, which creates continuous curtains that never loses track of the intruder.
The DD669AM features '4D signal processing' which makes an effective discrimination between intruder and false alarm signals. Recognising the diversity in security applications, the DD669AM also features Bi-curtain processing for harsher environments. The combination of mirror optics with 4D signal processing not only provides better detection but also increased stability and rejection of false alarms.
