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Running Intrusion
Time is an important factor when detecting a fast runner. High sensitivity and angling of the laser
in a manner allows the detector more time to process fast intrusions.
Installing the laser facing straight down 270°, the LD308SH can detect a 5.5ft intruder running at
a speed of 6.71mph. Any faster potentially results in a missed alarm. Using the same intruder
height and high sensitivity, by angling the laser 30° would increase the running speed to 22mph.
Note:
Mounting height and detectable target size should be considered when choosing the mounting
location. Refer to page 6 of this app note for detectable target size.
Figure 4: Vertical mount hangar door protection
LD308SH
LD204S
Detection speed using
the LD204S™:
270° = 8.9mph
Angled 30° = 24.8mph
8
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