Измеритель частоты кварцев

Брал тут: Стоимость: AU $10,19 Features: Designed to measure the oscillation frequency of most crystal oscillators. Based on PIC microcontroller, can measure frequency from 1Hz to 50MHz. Five digits accuracy, for example: kHz, MHz, or MHz. Optional power-saving mode: can automatically turns the display off if the frequency didn’t change significantly within 15 seconds. General USB interface c