Compact FFT Analyzer Performance Enhanced FFT Comparator Compact FFT Analyzer Compact WCA AD-3651 •Noise & vibration analyzer, from in-vehicle order tracking to MIMO analysis. •Best of all is its compact size and light weight Performance Enhanced FFT Comparator AD-3552 •Comparator function for machinery vibration & noise testing for production •Instantaneously delivers judgments "OK" or "NG"（no-good）for product testing of bearings, motors, etc.

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