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Alcohol drunk and nevertheless the display shows 0,00 promille?
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Alveolar air - what is this?
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CA 8120 in continuous use
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Can I calibrate the CA 8120 myself?
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Cash on delivery or prepayment?
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Display too high
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Display too low
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What are the costs of the review (including shipping / packaging)?
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When or how often must the device be checked?
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With doubts about the measurement results, we recommend the following experiment
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