Huawei E8278 Quick Start Manual page 68

Ideal operating temperatures are -10 °C to +40 °C. Ideal storage

temperatures are -20 °C to +70 °C. Extreme heat or cold may
damage your device or accessories.
Keep the device and accessories in a well-ventilated and cool area

away from direct sunlight. Do not enclose or cover your device with
towels or other objects. Do not place the device in a container with
poor heat dissipation, such as a box or bag.
Do not expose your device to direct sunlight (such as on a car

dashboard) for prolonged periods.
To protect your device or accessories from fire or electrical shock

hazards, avoid rain and moisture.
Keep the device away from sources of heat and fire, such as a heater,

microwave oven, stove, water heater, radiator, or candle.
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