DualCurtain Outdoor from Ajax Systems is a bidirectional curtain motion detector that can monitor up to 30 metres of the perimeter, efficiently protecting the approaches to windows, doors, arches, fences and window displays. It combines patented lens systems, a new digital algorithm to counter false alarms trained on millions of triggers, motion detection in a near area option, and flexible settings. All this runs on battery power for years.
The detector protects the most remote areas thanks to a connection range of up to 1700 metres from the hub. With two IR sensors on each side, DualCurtain Outdoor is effective against false alarms. The detector does not react if only one sensor has detected movement. When both sensors are triggered, the detector activates the special digital algorithm ELSA. In a fraction of a second, ELSA performs a three-step signal analysis, filtering out natural disturbances and animals, and concludes whether to raise an alarm.
The Ajax team also equipped DualCurtain Outdoor with a unique technology to extend the protected area. When the Near Area Detection is turned on, the upper IR sensor of the detector receives an additional narrow sector of view, directed at the angle of 40° down. This helps to detect the motion when there is an attempted intrusion close to the DualCurtain Outdoor body, solving the problem of the blind spot (a typical problem of such detectors).
DualCurtain Outdoor runs for up to four years on bundled batteries and has comprehensive protection against sabotage. Any problems, like attempts to disable the detector or a low battery, will be immediately reported by the system to the users and the security company. And thanks to the configurable hub-detector polling interval, the system is able to identify a connection loss with DualCurtain Outdoor in less than a minute. The detector meets Grade 2 level in accordance with the EN 50131 standard and is equipped with an anti-masking system that detects attempts to block the view or paint over the lenses.
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