HW831 User Guide Rev 1.0
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Appendix B: Safety Information
Follow any special regulations in force in any areas and always turn off the device when
its use is prohibited or when it may cause interference or danger.
When on board an aircraft, turn off the device when instructed to do so. Wireless devices
can cause interference in the aircraft.
Do not use the device in areas with potentially explosive atmospheres. These areas
include fuelling areas such as below decks on boats, fuel or chemical transfer or storage
facilities, areas where the air contains chemicals or particles such as grain, dust or metal
powders.
Do not use the device in blasting areas to avoid possible interference with the blasting
operations.
In hospitals or other health care facilities, turn off the device when instructed to do so.
Some medical equipment may be sensitive to external RF energy.
Do not hold the antenna when the device is in use. Holding the antenna may affect signal
quality, causing the device to operate at a higher power level than necessary.