Feature: Measurable frequency range 1 Hz -50 MHz. Can measure the oscillation frequency of most commonly used crystal. Five precise resolution (eg 0.0050 kHz, 4.5765 MHz, 11.059 MHz); Automatic range conversion, without human switching. Addition and subtraction frequency settings for the measurement of radio transceivers and other equipment. You can select the power saving mode, if the frequency is not obvious changes within 15 seconds automatically turn off the display. You can use the universal USB 5V interface power supply, can also use an external DC power supply or 9V battery. The number of components is small, all straight-line components, installation and commissioning simple. Specifications: Material: PCB  Color: Red  Frequency Range: 1Hz-50MHz  Crystal Test Range: About 4MHz-48MHz  Size of Assembled Item: About 8 x 5.5 x 0.7cm  Package including 1 Set of 1Hz-50MHz Frequency Counter Kit Notes:  1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!  2. Please allow 1-3cm measuring deviation due to manual measurement.

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