Bosch Appliances Home Security System DS820 User Manual

 

Intrusion Alarm Systems | DS820 and DS835 Series TriTech Motion Detectors

DS820 and DS835 Series TriTech Motion

Detectors

 

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Artificial intelligence

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Five detection layers including look down zones

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Five mounting options

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Selectable PIR sensitivity

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Vertical and horizontal pointability

The DS820 and DS835 Series Detectors provide
immunity to false alarms caused by pets. Passive
Infrared and microwave processing provides excellent
catch performance with freedom from false alarms.

Frequency

Model

9.9 GHz

DS820-B, DS820B-FRA, DS820B-ITA,

DS835-B, DS835B-FRA, DS835B-ITA, DS835C

10.475 GHz

DS820CH-SWI, DS835CH-SWI

10.525 GHz

DS820, DS820-BEL, DS820-CAN, DS820-NEL,

DS835, DS835-BEL, DS835-CAN, DS820-NEL

10.687 GHz

DS820-A, DS835-A

Uses passive infrared and microwave technologies to
provide an alarm condition when both fields of
protection are simultaneously activated. Alarm signals
must meet the signaling requirements of both
technologies to activate an alarm. Adjustable PIR and
microwave sensitivity.

Pattern recognition circuitry identifies and ignores
repetitive false alarm sources. Adaptive processing
adjusts to background disturbances. This helps to
reduce false alarms while maintaining catch
performance.

Motion Analyzer II uses multiple thresholds and timing
windows to analyze timing, amplitude, duration, and
polarity of signals to make an alarm decision. It will
not alarm on extreme levels of thermal and
illumination disturbances caused by heaters and air
conditioners, hot and cold drafts, sunlight, lightning,
and moving headlights. Provides three sensitivity
settings.

Externally visible alarm LED flashes to indicate a
trouble condition.

The sealed optical chamber provides immunity to
drafts and insects.