Safe-Keeping; To Prevent Malfunction - Citizen CH-617 Instruction Manual

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.SAFE-KEEPING:

Always keep the device in the carrying case after its use.
Do not put the item directly under the sunlight, in high
temperature, or humid and dusty places.
Do not store the device in extremely low (less than –13 °F/
–25 °C) and high (more than 158 °F/ 70 °C) temperature, nor
in a place its humidity exceeds 93% R.H.
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.TO PREVENT MALFUNCTION:

Do not in any way twist the wrist cuff.
Do not start the air pressure when the wrist cuff is not wrapped
around the wrist.
Do not attempt to disassemble or change any parts of the
monitor including wrist cuff.
Do not drop the product or put it through strong impact.
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