ITEM NAME:1Hz-50MHz Digital LED Crystal Oscillator Frequency Counter Tester DIY Kits Description: - Frequency range:1Hz -50MHz. - Used to measure the oscillation frequency of the crystal. - Five accuracy resolution (eg 0.0050 kHz , 4.5765 MHz , 11.059 MHz). - Automatic range conversion, without human switch. - Selectable power saving mode, within 15 seconds if there is no significant change in the frequency automatically turn off the display. - Can use USB 5V interface, power supply , can also use an external power supply or 9V battery. - Small number of elements , all DIP components, installation is simple. Specification: - Material: electronic components - Moudle Size: approx. 80 x 52 x 1mm/3.1 x 2 x 0.04inch - Nixie tube:approx. 19 x 13 x 15mm/0.7 x 0.5 x 0.6inch Package Included: 1 Piece 5 Digits Resolution Crystal Oscillator Frequency Counter.1 Piece 5 Digits Resolution Crystal Oscillator Frequency Counter. - Frequency range:1Hz -50MHz. - Selectable power saving mode, within 15 seconds if there is no significant change in the frequency automatically turn off the display.