--- product_id: 69765554 title: "SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder" brand: "hksunkin" price: "£59.91" currency: GBP in_stock: true reviews_count: 8 category: "Hksunkin" url: https://www.desertcart.co.uk/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs store_origin: GB region: United Kingdom --- # 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:** £59.91 **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?** £59.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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. Review: SURECOM SF401 Plus Frequency Counter - SURECOM SF401 Plus Frequency Counter works great out of the box. It comes with a charger. I tested it with a few ham radios, a GMRS radio, and Motorola. The operating system may seem old for some, like DOS back in the day, but that makes it work well. Very easy to use and straight to the point. If all you need is a frequency counter, I recommend SURECOM SF401 Plus Frequency Counter—no need for adapters or extra cables. Keep in mind that is very sensitive, so the closer the SURECOM SF401 Plus Frequency Counter is to the radio, the better. Review: It works well when close enough - You do really have to be close to the device you are looking to scan sometimes. By close, I mean nearly touching, but if you are simply just trying to find what frequency something is set to (that doesn't provide the information natively and isn't digital), then it typically works quite well for us. We use it at times during some of our benchmarks and it has been useful a number of times since we added it to our collection of tools and devices. It will not give you any results (usable results) of course if the device your are scanning is digital/encrypted. ## 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 | |---------------|-------| | ASIN | B06XCF9PPJ | | Additional Features | Wireless | | Best Sellers Rank | #2,281 in Portable FRS Two-Way Radios | | Brand | HKSUNKIN | | Built-In Media | SF401 PLUS Frequency Counter, UHF Antenna, English User Manual, USB charger cable, USB AC adapter 100-240V | | Color | Black | | Compatible Devices | VHF, UHF, DMR devices | | Connectivity Protocol | VHF, UHF, DMR | | Customer Reviews | 4.2 out of 5 stars 115 Reviews | | Frequency Range | 27Mhz-3000Mhz | | Item Weight | 8.4 Ounces | | Manufacturer | HKSUNKIN | | Mfr Part Number | 9999999919 | | Model Number | SF401 | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Number of Channels | 1 | | Special Feature | Wireless | | Talking Range Maximum | 5 Miles | | Tuner Type | UHF, VHF | | UPC | 744370308266 | | Unit Count | 1.0 Count | | Voltage | 3.7 Volts | | Water Resistance Level | Waterproof | | Waterproof Rating | IP66 | ## Product Details - **Brand:** HKSUNKIN - **Color:** Black - **Frequency Range:** 27Mhz-3000Mhz - **Item Weight:** 8.4 Ounces - **Number of Batteries:** 1 Lithium Ion batteries required. (included) - **Number of Channels:** 1 - **Special Feature:** Wireless - **Talking Range Maximum:** 5 Miles - **Voltage:** 3.7 Volts - **Water Resistance Level:** Waterproof ## Images ![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 1](https://m.media-amazon.com/images/I/61E8Yx+7QWL.jpg) ![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 2](https://m.media-amazon.com/images/I/51i6BzJhuRL.jpg) ![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 3](https://m.media-amazon.com/images/I/51gI2NMfh3L.jpg) ![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 4](https://m.media-amazon.com/images/I/51A6MITytaL.jpg) ![SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - Image 5](https://m.media-amazon.com/images/I/51s7SIqmhpL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ SURECOM SF401 Plus Frequency Counter *by M***Y on February 21, 2023* SURECOM SF401 Plus Frequency Counter works great out of the box. It comes with a charger. I tested it with a few ham radios, a GMRS radio, and Motorola. The operating system may seem old for some, like DOS back in the day, but that makes it work well. Very easy to use and straight to the point. If all you need is a frequency counter, I recommend SURECOM SF401 Plus Frequency Counter—no need for adapters or extra cables. Keep in mind that is very sensitive, so the closer the SURECOM SF401 Plus Frequency Counter is to the radio, the better. ### ⭐⭐⭐⭐ It works well when close enough *by P***H on January 29, 2019* You do really have to be close to the device you are looking to scan sometimes. By close, I mean nearly touching, but if you are simply just trying to find what frequency something is set to (that doesn't provide the information natively and isn't digital), then it typically works quite well for us. We use it at times during some of our benchmarks and it has been useful a number of times since we added it to our collection of tools and devices. It will not give you any results (usable results) of course if the device your are scanning is digital/encrypted. ### ⭐⭐⭐⭐⭐ Surecom Freq meter *by D***H on March 14, 2026* Just what I wanted, price was good. Shipping was another story, but that is just where I live!!!!! The USPS in Kalispell Mt. Sucks!!!!!!!!! ## Frequently Bought Together - SURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder - BTECH PC03 FTDI Universal Plug & Play USB Programming Cable for BTECH, Baofeng, Kenwood Radios - Compatible with UV-5R, BF-F8HP, GMRS-V2, UV-82HP & More - Easy Setup, No Driver Needed - TIDRADIO Ham Radio Wireless Programmer Adapter APP and PC Program for Baofeng UV-5R and Multiple Models No Driver Issues Instead of Program Cable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs](https://www.desertcart.co.uk/products/69765554-surecom-sf401-plus-frequency-counter-for-radio-transceiver-ctccss-dcs) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*