Clean the unit only with a soft, dry cloth. Do not use solvents.

Do not carry the unit around in your back pocket, as it may break when YOU sit down. The display is made of

I( &q j glass and is particularly vulnerable.

lls Replace the batteries as soon as they become weak (see p. 301). Failing to replace weak batteries may result in leakage or lost data.

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Sharp IQ-8900, IQ-8920 manual