Technical information:
 - Power Supply 9 VDC
 - Frequency Measurement 1HZ to 50MHz ( Square / Since wave / RF )
 - LCD Display
 - Auto Range
 - Input Sensitivity 100mV to 500mV
 - Use Micro controller PIC16C54 to control board
 - It was already assembled
 - PCB size 3.6cm x 8cm x 2.2cm ( H )

Accuracy of measurement
Freq 2MHz-50MHz - - - >      Display xx. xxxxx MHz
Freq 101 Khz - 2MHz - - - >  Display xxxx. xxx Hz
Freq 2kHz -100 KHz - - - >   Display xxx. xxxx KHz
Freq < 2KHz         - - - >     Display 1xxx Hz
No signal               - - - >    Display Hz or 1Hz