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News

Dual motion detection sensor for homes and small businesses.

Bosch Security Systems : 18 June, 2007  (New Product)
Dual detection technology suitable for environments prone to high rates of false alarms with traditional single detection passive infra red systems.
Bosch Security Systems has added a high-quality, compact dual-motion
detector to its wireless Local SecurityNetwork (wLSN) product offer. The
new wLSN Dual Motion Detector employs passive infrared (PIR) and
microwave (MW) technologies to provide optimal detection in residential
and small business applications. It is especially suitable in difficult
environments, that could have fault alarm sources for passive infrared
detectors such as heating, air drafts etc. The detector combines a broad
coverage pattern of 11 x 11 meters with excellent catch performance and
high immunity to false alarms. Moreover, it is able to distinguish between a
signal caused by an adult human and one caused by a domestic pet
weighing up to 45 kg, such as a large dog.

The detector's First Step Processing (FSP) feature provides instant
response to human targets without affecting false-alarm immunity.
Automatic adjustment of sensitivity based on signal amplitude, polarity,
slope and timing eliminates the need for sensitivity selection by the
installer. Eight detection layers with 79 segments, plus a second
'lookdown' lens array, provide high-density detection. Consistent catch
performance is enhanced by automatic temperature compensation that
adjusts sensitivity at critical temperatures.

Bosch's wLSN is a state-of-the-art, multiple-point RF wireless alarm
technology that comprises an Easy Series intrusion control panel, an RF
hub, wireless detectors, key fobs, an indoor siren and other output
modules. The new dual-motion detector complements the range of singlesensor
devices that includes PIR, smoke, inertia, a range of door window
contacts and glass break detectors. RF signal strength mode is used to
determine optimal mounting location of the dual-motion detector. This is
activated by pressing the detector's internal tamper switch three times
within 10 seconds of battery installation. A rapidly flashing LED indicates
that the device is receiving signals from the wLSN hub, while a slow flash
indicates no signal reception. The wLSN hub only communicates with
devices it has discovered and confirmed as part of the system.

The unique design of the wLSN Dual Motion Detector decreases
installation time and risk of error. It can be mounted at any height between
2.3 and 2.7 meters on flat-surface or corner locations without adjustment.
Operation is up to 3.5 years using standard AA alkaline batteries from
recognized quality manufacturers.
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