![](/images/new-backgrounds/1294988/294988129x1.webp)
Check the clear, protective coating over the Meter optics to make sure it is not scratched or damaged.
Rub Test Area with a cotton swab or soft cloth dampened with water to remove all blood, dirt, or lint from the Test Area. If necessary, a mild liquid dishwashing detergent mixed with water may also be used. Do not apply
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