Appendix A: TouchScreen Installation and Maintenance
93
Recommendations for Sensor Installation and Placement
Door/Window Sensors and Glass Break Detectors
Install door/window sensors and/or glass break detectors at every possible location of entry, both
upstairs and down.
Glass Break Detectors
For best detector performance, select a mounting location that is:
Within 7.6 m (25 ft) of the protected glass
Within clear view of the protected glass
On the same wall as the protected glass
At least 2 m (6.5 ft) from the floor
At least 1 m (3 ft) from forced-air ducts
At least 1 m (3 ft) from sirens or bells greater than 5 cm (2 in.) in diameter
On a window frame if any heavy window covering is present
Avoid mounting the detector in the following locations:
In a corner
On free standing post or pillars
In rooms with noisy equipment such as air compressors, bells/ door bell, and power tools
In bathrooms (a slamming toilet seat will easily fault a glass break detector)
Motion Detectors
When placing motion detectors, anticipate traffic patterns:
The lanes of traffic most used by people in your home are also those most likely to be used by
intruders.
Foyers, stairways, hallways, and entrance-ways are excellent locations for a motion detector.
Do not place motion detectors at the end of hallways where an intruder will be walking directly
toward or away from the detector. For best coverage, mount the motion so that the likely direc-
tion of intruder motion is across the motion detector’s pattern.
A motion detector facing the following can cause false-alarms or failures in detection:
Direct sunlight
Cold drafts
Windows
