---
product_id: 69765554
title: "SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder"
brand: "hksunkin"
price: "€ 96.04"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs
store_origin: IT
region: Italy
---

# 27MHz-3000MHz wide freq range Built-in Li-ion battery TCXO 2~2.5ppm precision oscillator SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder

**Brand:** hksunkin
**Price:** € 96.04
**Availability:** ✅ In Stock

## Summary

> 📡 Stay ahead on every frequency — decode, measure, and dominate the airwaves!

## Quick Answers

- **What is this?** SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder by hksunkin
- **How much does it cost?** € 96.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs)

## Best For

- hksunkin enthusiasts

## Why This Product

- Trusted hksunkin brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Vibrant Color Display:** Stay informed with a sharp 240x320 color screen and adjustable LCD dimming for any lighting condition.
- • **Compact & Portable Design:** Lightweight 8.4oz handheld device with auto power-off and USB charging for nonstop field use.
- • **Precision TCXO Oscillator:** Experience crystal-clear frequency accuracy with temperature-compensated stability at 2~2.5ppm.
- • **Intuitive Four-Button Control:** Navigate effortlessly with a minimalist interface designed for quick, on-the-go adjustments.
- • **Ultra-Wide Frequency Coverage:** Seamlessly monitor 27MHz to 3000MHz bands including 2m HAM, VHF, UHF & DMR radios.

## Overview

The SURECOM SF401 Plus is a compact, handheld frequency counter designed for radio transceiver enthusiasts and professionals. Covering an extensive 27MHz to 3000MHz range, it features a high-precision TCXO oscillator, CTCSS/DCS decoding, and a vibrant color display. Powered by a built-in rechargeable Li-ion battery and controlled via an intuitive four-button interface, it offers reliable, portable frequency measurement for VHF, UHF, HAM, and DMR radios.

## Description

Powerful signal strength indicator to measure walkie talkies' continuous carrier signal frequency for wireless enthusiasts  Features: * 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 240x320 * 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  Note:  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.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HKSUNKIN |
| Brand | HKSUNKIN |
| Item Weight | 8.4 ounces |
| Product Dimensions | 2.3 x 3.1 x 1 inches |
| Item model number | SF401 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 9999999919 |
| Special Features | Wireless |
| Voltage | 3.7 Volts |

## Product Details

- **Brand:** HKSUNKIN
- **Color:** Black
- **Number of Channels:** 1
- **Special Feature:** Wireless
- **Frequency Range:** 27Mhz-3000Mhz
- **Talking Range Maximum:** 5 Miles
- **Voltage:** 3.7 Volts
- **Water Resistance Level:** Waterproof
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Item Weight:** 8.4 Ounces

## Images

![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 1](https://m.media-amazon.com/images/I/61E8Yx+7QWL.jpg)

## Questions & Answers

**Q: does the product give the transmiting freqs to my recieveing freqs**
A: Yes it will only read transmiting freq. And your squelch tones but you’ll  need to find the receive frequency if your using a repeater.

**Q: can i use this to find hidden cameras and hidden microphones?**
A: i don't know but it pick up WiFi and it may you would have to know what the range is

**Q: Can this also detect output wattage of a handheld?**
A: No. To measure wattage will require direct connection to the transmitter via a cable.

**Q: How far apart  between radios can you get?**
A: HAND HELD AS RANGE AS RESULTS CHANGE WITH WITH INCHES.

## Frequently Bought Together

- SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder
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**Shop now:** [https://www.desertcart.it/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs](https://www.desertcart.it/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-02*