زلق المخلفات عروس metex 3800 digital multimeter مقبرة بالفشل مهم للغاية
تويتر \ Nooelec على تويتر: "@GerhardSchweiz1 Not sure what's going on with yours. Have you checked your USB voltmeter doohickey against a reference? Some have calibration buttons maybe you hit it by
Digital Multimeter M-3800 Equipment Metex Corporation,
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