DUAL-ELEMENT INFRARED MOTION SENSOR
(490-0531)                 Coverage                   Faxback Doc. # 33463

COVERAGE

Your Infrared Motion Sensor covers five zones.  The maximum usable
sensitivity of the sensor is about 40 feet (12 meters).  At this maximum
distance, the coverage is about 40 feet across and two feet high.  Actual
coverage depends on the shape of the protected area and the texture of the
walls and other surfaces within the area.

Movement above or below the zones is not detected.  This helps prevent
false alarms due to pets or small children.  The sensor is more sensitive
to motion across its zones and less sensitive to movement directly toward
or away from the zones.

AVOIDING FALSE ALARMS

Because your Infrared Motion Sensor is activated by heat, it is important
to choose the mounting location for the sensor with care to avoid
conditions that could cause a false alarm.  The most common causes of false
alarms are:

    Sunlight shinning directly on the unit

    Heat sources such as radiant space heaters within a covered zone

    Strong drafts of air onto the sensor, (such as from a central heating
    vent or an air conditioner)

    Animals within a zone

Take care to avoid areas with these hazards when placing the unit.  Also,
be sure to walk-test the area to be covered before activating the central
alarm unit.

NOTE:  In some areas, false alarms are subject to fines.  Be sure to check
       the laws in your area.

(BR/EB 6/6/96)