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MAIN UNIT/SUB UNIT COMMUNICATION PRECAUTIONS
Sub Unit Location
• Certain environmental conditions can greatly reduce the communication range.
• Avoid the following locations for the sub-unit.
Inside or among
Inside a vehicle
Near refrigerators
buildings, or near
or other household
neon signs
appliances, near
office equipment,
mobile phones or
wireless LAN
devices
• Locating the sub-unit near a device that transmits radio signals using the same frequency as this product can
cause communication failure of this product.
• Avoid using multiple products in the same area. Doing so can cause mixing of their signals.
Operation Guide IDR-200
Near a
Near high-tension
construction site,
power lines
airport, or other
sources of
electrical noise,
underground or in
tunnels, near
railroads,
highways, or radio
stations with
interfering
frequencies
6
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