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40 –
WARNING!
THE LIMITATIONS OF THIS ALARM SYSTEM
While this system is an advanced design security system, it does not offer guaranteed protection against burglary or 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 power.
Battery operated devices will not work without batteries, with dead batteries, or if the batteries are not put in properly. Devices
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 may be 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 detectors have played a key role in reducing residential fire deaths, they may not activate or provide early warning for
a variety of reasons in as many as 35% of all fires. Some of the reasons smoke detectors used in conjunction with this System may
not work are as follows. Smoke detectors may have been improperly installed and positioned. Smoke detectors may not sense fires
that start where smoke cannot reach the detectors, such as 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 basement fire. Moreover, smoke detectors have sensing limitations. No smoke detector can sense every
kind of fire every time. In general, detectors may not always warn about fires caused by carelessness and safety hazards like
smoking in bed, violent explosions, escaping gas, improper storage of flammable materials, overloaded electrical circuits, children
playing with matches, or arson. Depending upon the nature of the fire and/or the locations of 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 diagrammed in their installation manual.
Passive Infrared Detectors do not provide volumetric area protection. They do create multiple beams of protection, and intrusion
can only be detected in unobstructed areas covered by those beams. They cannot detect motion or intrusion that takes place
behind walls, ceilings, floors, closed doors, glass partitions, glass doors, or windows. Mechanical tampering, masking, painting or
spraying of any material on the mirrors, windows or any part of the optical system can reduce their detection ability. Passive
Infrared Detectors sense changes in temperature; however, as the ambient temperature of protected area approaches the
temperature range of 32° to 40°C, the detection performance can decrease.
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