SF-401 Plus Frequency Counter

SF-401 Plus Frequency Counter

Surecom TYT SF-401 Plus Frequency Counter with CTCCSS/DCS Decoder. Fully Rechargeable.

A genuine, new SF-401 Plus Frequency Counter with CTCCSS/DCS Decoder - fully rechargeable.

The TYT SF-401 plus allows the user to see the given output frequency of a 2 way radio with any codes or tones attached to the given frequency.

The unit has both analog and digital options with a signal meter, battery level indicator and clear LCD display giving you clear understanding of the information being received by the unit.


  • CTCSS/DCS Decoder
  • LCD Dim level setting - Fully Adjustable
  • Frequency digital 0.000 or 0.0000
  • Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) 2~2.5ppm
  • Color Display 240x320
  • Built-in Li-ion battery
  • Only four-button control means easy to use
  • Small size allows hand holding.
  • Auto power off 1-9minutes
  • Charging battery LED indicator

What's In The Box?

  • 1x SF-401 Plus Frequency Counter
  • 1X Stubby Antenna
  • 1x User Manual
  • 1x USB Charging Cable
  • 1x USB Adapater - 3pin Plug