buy now


Powerful signal strength indicator to measure walkie talkies’ continuous carrier signal frequency for wireless enthusiasts

* CTCSS/DCS Decoder
* LCD Dim level setting
* Frequency digital 0.000 or 0.0000
* Work by TCXO(Temperature Compensate X’tal (crystal) Oscillator) 2~2.5ppm
* Color Display 240×320
* Build-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

Package Contents:
1x SF401 PLUS Frequency Counter
1x UHF Antenna
1x English User Manual
1x USB charger cable
1x USB AC adapter 100-240V

Steps of If Frequency Counter Cannot Check VHF Frequency
1) Swtich the ATT button into left hand side.
2) Then change the antenna into VHF or Dual band, as customer are using UHF antenna, but checking VHF band.

Designed for counting continuous wave signal from Two-way Radio
Easy ranges to choose and cover almost all the frequency
Include frequency areas such as 2m HAM radio, all VHF and UHF (Frequency range: 27Mhz-3000Mhz)
DMR Radio signal frequency counter
Easy battery level