Table of Contents
Advertisement
LIMITATIONS OF THIS SYSTEM
While this system is an advanced design security system, it does not offer guaranteed protection against burglary 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 in the United States, they may not activate or provide
early warning for a variety of reasons in as many as 35% of all fires, according to data published by the Federal Emergency Management
Agency. 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 90° to 105°F, the detection performance can decrease.
• Alarm warning devices such as sirens, bells or horns may not alert people or wake up sleepers if they are located on the other side of
closed or partly open doors. If warning devices sound on a different level of the residence from the bedrooms, then they are less likely to
waken or alert people inside the bedrooms. Even persons who are awake may not hear the warning if the alarm is muffled from a stereo,
radio, air conditioner or other appliance, or by passing traffic. Finally, alarm warning devices, however loud, may not warn hearing-
impaired people or waken deep sleepers.
• Telephone lines needed to transmit alarm signals from a premises to a central monitoring station may be out of service or temporarily
out of service. Telephone lines are also subject to compromise by sophisticated intruders.
• Even if the system responds to the emergency as intended, however, occupants may have insufficient time to protect themselves from the
emergency situation. In the case of a monitored alarm system, authorities may not respond appropriately.
• This equipment, like other electrical devices, is subject to component failure. Even though this equipment is designed to last as long as 10
years, the electronic components could fail at any time
The most common cause of an alarm system not functioning when an intrusion or fire occurs is inadequate maintenance. This alarm system
should be tested weekly to make sure all sensors and transmitters are working properly.
Installing an alarm system may make one eligible for lower insurance rates, but an alarm system is not a substitute for insurance.
Homeowners, property owners and renters should continue to act prudently in protecting themselves and continue to insure their lives and
property.
We continue to develop new and improved protection devices. Users of alarm systems owe it to themselves and their loved ones to learn
about these developments.
– 54 –
www.PDF-Zoo.com
WARNING!
THE LIMITATIONS OF THIS ALARM SYSTEM
Advertisement
Table of Contents
