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7
Ideally, the Alert Sensor should only see the entry/exit
point (e.g., your driveway), and the only moving objects in
front of the sensor should be the cars or people you want
to detect (i.e., no obstructions in the field of view).
Avoid placing the Alert Sensor in an area where it will face
direct or reflected sunlight, or where the environmental
temperature may change suddenly (for example, near
heat or cold producing devices such as heaters, air
conditioners, or lamps).
Any moving heat source can trigger the Alert Sensor. For
example, a moving shadow on a sunny day may trigger the
Alert Sensor, or the sun coming out from behind clouds.
False triggers should be rare, but will occasionally occur.
Wandering small animals (such as a cat or similar) can,
under some circumstances, trigger the Alert Sensor.
Therefore, we suggest that the Alert Sensor is not suited to
areas where pets are routinely kept.
Placement guide
The Alert Sensor, under typical conditions, is designed to detect
people and vehicles moving within an area of approximately 6
meters (around 20 feet) at a 100° angle from the sensor.
For best coverage and to maximize detection, mount the Alert
Sensor approximately 2m/6ft off the ground, pointing on a
slightly downwards angle.
6ft/2m
13ft/4m
20ft/6m
100°
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