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Check the listing for details. 0.1-65MHz High Precision Frequency Counter with 2.5ppm TCVCXO & 10Hz Resolution. Condition: New. Listed at 24.89 USD. Accuracy: 10Hz. Excellent Display Effect: It uses an LED chip digital tube display, which has high brightness and strong resistance to external interference. 1 x Frequency Counter. Display digits: Six common anode LED display, the highest displays six digits.