Measuring Tool Stainless Steel

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span stylefontsize 36pxstrongBattery not included strongspan

span stylefontsize 26pxstrong15V battery LR44strongspan
divDigital confusion There are three main reasonsdiv
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divA The surface of the protective film is damp or stained with cutting fluid or other conductive particlesdiv
divTreatment Wipe the surface of the ruler and the protective film with a dry cloth slightly dampened with absolute ethanol or aviation gasoline Gently twist a small drop of absolute ethanol or aviation gasoline be careful not to drip too much otherwise the liquid will enter the electronic components causing other problemsdiv
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divB The copper clad plate under the protective film is affected by corrosion and blackeningdiv
divTreatment method Uncover the protective film polish the surface of the copper strip with highgrade rubber or metallographic sandpaper and clean itdiv
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divC The battery is not enough treatment replace a new batterydiv
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