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Copyright © 2019 Nortek Security & Control LLC
12
Where to Place Wireless Sensors
When placing the system’s wireless sensors, it is important to remember that they communicate with the GC3 Panel
over radio frequency (RF). This subjects the system to radio interference, which can be caused by a variety of sources,
such as other RF devices, construction materials, or even when placing sensors in close proximity to other appliances,
electronic devices, or electrical wiring.
CAUTION!
While the GC3 Panel includes a sensitive receiver that typically allows for placement of wireless
sensors in nearly all locations, it is important to always install sensors in areas that provide the best possible signal
strength.
To ensure the system and sensors are placed appropriately, review the following illustration.
Control Panel Location Relative to Sensors
CORRECT
Centrally Locate
Control Panel
INCORRECT
Sensors at the other end of the
house might be too far away
Control Panel Location Height
CONTROL
PANEL
Basement
CORRECT
Mount Control Panel as HIGH
above earth level as practical
INCORRECT
Locating Control Panel below
earth level impairs range
Sensor Signal Loss Through Materials
90% - 100%
Of Full Power
65% - 95%
Of Full Power
10% - 70%
Of Full Power
Wallboard and
Wood Studs
Light Concrete
Or Brick
Concrete with Steel
Reinforcement or Metal
Lath and Plaster
Location of Sensors
SENSOR
DOOR
Minimum
3 ft
Concrete
slab
floor
DOOR
Concrete
slab
floor
Less
than
3 ft
above
slab
SENSOR
SENSOR
Wall
CORRECT
CORRECT
INCORRECT
Large
metal
appliance
(refrig.)
CONTROL
PANEL
Basement