LIMITATIONS OF THIS ALARM SYSTEM
While this system is an advanced design security system, it does not offer guaranteed protection
against burglaW, fire, or other emergency. Any alarm system, whether commercial or residential,
is subject to compromise or failure to warn for a variety of reasons. For example
Intruders may gain access through unprotected openings or have the technical sophistication to
bypass an alarm sensor or disconnect an alarm warning device.
Intrusion detectors (e.g. passive infrared detectors), smoke detectors, and many other sensing
devices will not work without batteries, or if the battaries are not put in properly. Devicee powered
solely by AC will not work if their AC power supply is cut off for any reason, however briefly.
Signals sent by wireless transmitters maybe blocked or reflected by metal before they reach the
alarm receiver. Even if the signal path has been recently checked during a weekly test, blockage
can occur if a metal object is moved into the path.
A user may not be able to reach a panic or emergency button quickly enough.
While smoke datectors have played a key role in reducing residential fire deaths in the United
States, they may not activate or provide early warning for a variety of reasona in as many aa 35Y.
of all fires according to data published by the Faderal Emergency Management Agency. Some of
the reasons smoke detectors usad in conjunction with the System may not work are as follows
Smoke detectors may not sense fires that start where smoke cannot reach the detactors, such ae
in chimneys, in walls, or roofs, or on the other side of closed doors. Smoke detectors also may
not sense a fire on another level of a residence or building. A second floor detector, for example,
may not sense a first floor or basemant fire. Moreover, smoke detectors have sensing imitations.
No smoke detector can sense every kind of fire eve~ time. In general, detectors may not always
warn about fires caused by carelessness and safe~ h=ards like smoking in bed, violent
explosions, ascaping gas, improper storage of flammable matetials, overloaded electrical circuits,
children playing with matches, or arson. Dependng on the nature of the fire andor the location of i
the smoke detectors, the detector, even if it operates as anticipated, may not provide sufficient
warning to allow all occupants to escape in time to prevent injury or death.
Passive Infrared Motion Detectors can only detect Intrusion within the designed ranges as
diagramed in their Installation Manual. Passive Infrared Detectors do not provide volumetric
area protection. Theydo create multiple beams of protection, and lntrueion can only be detected
in unobstructed areas covered by the beams. They cannot detect motion or intrusion that takes
place behind walls, ceihngs, floors, closed doors, glass partitions, glass doors or windows.
Mechanical tampering, masking, painting or spraying, of any material on the mirrors, windows or
any pati of the optical systam can reduce their detection abitity. Passive Infrared Detectors sense
changes in temperature however, aa the ambient temperature of the protected area approaches
the temperature range of 90 degrees to 150 degrees Fahrenheit, the detection performance can
decrease.
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