La Crosse Technology WT-5120 Instruction Manual page 27

Precautions shall be taken when handling the batteries. Injuries, burns, or
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property damage may be resulted if the batteries are in contact with conducting
materials, heat, corrosive materials or explosives. The batteries shall be taken out
from the unit before the product is to be stored for a long period of time.
Immediately remove all low powered batteries to avoid leakage and damage.
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Replace only with new batteries of the recommended type.
When cleaning the display and casings, use a soft damp cloth only. Do not use
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solvents or scouring agents as they may mark the LCD and casings.
Do not submerge the unit in water.
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Special care shall be taken when handling a damaged LCD display. The liquid
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crystals can be harmful to user's health.
Do not make any repair attempts to the unit. Return them to their original point of
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purchase for repair by a qualified engineer. Opening and tampering with the unit
may invalidate their guarantee.
Never touch the exposed electronic circuit of the device as there is a danger of
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electric shock should it become exposed.
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