Handheld Digital Tachometer RPM Gauge For Motor Aircraft Propeller

Surface Velocity Resolution: 0.01 (1-99.99); 0.1(100~999.9); 1(1000-99,999). Rotation Speed Resolution (RPM): 0.01(1-99.99); 0.1(100-999.9); 1(1000-99,999). Speed And Frequency Accuracy: ±(0.02% reading +1 word).

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