Chesoon Frequency Counter Board Digital LED Display Crystal Oscillator and Measurement 1 50MHz with Programmable Settings High Precision

【Wide Range】The measurable frequency range is 1 Hz-50 MHz . It can measure the oscillation frequency of most common crystal oscillators. 【High Precision】 Automatic range conversion, no manual switching, five-digit precision resolution (for example, 0.0360KHz, 4.5879MHz, 15.063MHz). 【Programmable Settings】 Programmable addition and subtraction frequency settings can be used to measure radio transceivers and other equipment. 【Energy-saving Design】 The Power-saving mode can be selected, and the display will be turned off automatically if the frequency does not change significantly within 15 seconds. 【Multiple Power Supply Options】 The universal USB 5V interface can be used for power supply, or an external DC power supply or 9V battery can be used.