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SF-401 Plus Hand Held Frequency Counter

  • $36.99


- The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal strength indicator.
- It is the tool of choice for maintenance personnel ,test frequency and signal strength of wireless enthusiasts.
- This portable frequency counter is designed for counting continuous wave signal comes from Two-way Radio.
- There are easy ranges for you to choose. The ranges cover most of the frequency of the two way radios you want to measure.
- Its four-button control is easy to use and its small size allows you to carry it anywhere you like.
- Work by  TCXO(Temperature Compensate X'tal (crystal) Oscillator) ,In the range of -45 ~ 65 can reach ± 2 ~ ± 4ppm accuracy
- This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF
- DMR Radio signal e frequency counter.
- Easy Battery level

Included an extra 5-003BNC-UV 19cm Antenna SMA-Male 144/430Mhz Antenna


To count frequency:
1) Switch the ATT button to left hand side
2) Change the antenna into VHF or Dual Band accordingly

Feature & Specification:

- Frequency range: 100Mhz-3000Mhz
! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance)
- CTCSS/DCS Decoder
- LCD Dim level setting
- Frequency digital 0.000  or 0.0000  ( +-0.001)
- Work by TCXO( Temperature Compensate X'tal (crystal) Oscillator) 2~ž2.5ppm
- Frequency Response time:  0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec)
- TFT Color Display 240 x 320
- Build-in  Li-ion battery
- Net Weight: 113g
- 4 buttons control
- Auto power off  1-9minutes  
- Charging battery LED indicator 
- Charging battery LED indicator 



Brand Name: SURECOM HK SF-401 SF-401-PLUS

Signal  attenuation s.w.

-10db  No YES
Battery Buily-in level Voltage Easy icon
Flash Light LED YES NO
TFT LCD: 320 x 240 pixels YES YES
Frequency Range: 27Mhz -3Ghz  YES YES
Li-ion Battery build-in : 3.7V 600mah YES YES
current consumption: 10ma YES YES
TCXO crystal Oscillator +- 2.5ppm YES YES
Changer in: Micro usb +5V YES YES

impedance input:

50 Ohm (BNC) YES YES


113g YES YES

Dimensions size :

70 x 25 x 90mm YES YES