Thread: How to diagnose a meter?
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Old 07-28-2012, 07:33 PM
wmvdligt wmvdligt is offline
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Join Date: May 2010
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The meters are required by USA law to be no more than 20% out. USA standard is in this case adopted globally. All are abt 20% out. There are larger professional models that are slightly better. Cost 100x more.
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