--- product_id: 69765552 title: "Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder" brand: "surecom" price: "€ 95.41" currency: EUR in_stock: true reviews_count: 12 category: "Surecom" url: https://www.desertcart.gr/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter store_origin: GR region: Greece --- # 27MHz-3000MHz wide freq range Built-in Li-ion USB rechargeable ±2~4ppm TCXO accuracy Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder **Brand:** surecom **Price:** € 95.41 **Availability:** ✅ In Stock ## Summary > 📡 Stay tuned, stay ahead — the frequency counter that never misses a beat! ## Quick Answers - **What is this?** Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder by surecom - **How much does it cost?** € 95.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter) ## Best For - surecom enthusiasts ## Why This Product - Trusted surecom brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Ready-to-Go Kit:** Includes UHF antenna, USB charger, and AC adapter—everything you need to stay connected and ahead in your radio game. - • **Precision Frequency Tracking:** Pinpoint frequencies from 27MHz to 3000MHz with ultra-stable TCXO tech for ±2~4ppm accuracy, ensuring your signals are always crystal clear. - • **Rapid Response & Smart Power:** Get frequency readings in just 0.2 seconds with auto power-off settings (1-9 mins) to maximize battery life during critical fieldwork. - • **Compact & Portable Powerhouse:** Weighing just 113g with a sleek color LCD and intuitive 4-button control, it’s designed to go wherever your radio adventures take you. - • **Seamless Analog & Digital Decoding:** Decode CTCSS/DCS tones effortlessly across analog and digital modes, making it the ultimate tool for pro-level radio diagnostics. ## Overview The Surecom SF401 Plus is a portable frequency counter meter covering a broad 27MHz to 3000MHz range, equipped with a temperature-compensated crystal oscillator (TCXO) for ±2~4ppm accuracy. It features a color LCD, CTCSS/DCS decoding for analog and digital signals, rapid 0.2s response time, and a rechargeable Li-ion battery with USB charging. Lightweight and compact, it’s ideal for professionals needing precise frequency measurement and signal decoding on the go. ## Description Frequency range: 27Mhz-3000Mhz CTCSS/DCS Decoder LCD Dim level setting Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) 2 - 2.5ppm Rresponse time: 0.2s. Color Display Build-in Li-ion battery Net Weight: 113g 4 buttons control Auto power off 1-9minutes Chaging battery LED indicator Package Contents: 1x SF401plus Frequency Counter 1 x UHF Antenna 1x User Manual 1x USB charger cable 1x USB AC adapter Review: Works with digital & analog - My unit works and properly reports the TX frequency and CTCSS tone, if sending, as indicated in the manual. Attenuation was off and you really need to get the supplied antenna next to the TX antenna to get a reading. Please review my notes below carefully. DMR was the only mode to provide a frequency reading when the meter was set to digital. P25 and C4FM (Yaesu Fusion) could be identified only when set to analog. I tested the following all with correct frequency results: - 10 meter band using analog FM - 6 meter band using analog FM - 2 meter band using analog FM/P25/C4FM - 70 cm band using analog FM/P25/C4FM - 33 cm band using analog FM - 70 cm band using digital DMR I am pleased with the function of this meter and that it charges via USB as well. Still, if your unit appears to not be working after it powers up, you probably do not have the antenna literally next to or touching the TX antenna. I also tested by adjusting the "RF detect level" in the settings and moving it from 5 to 40. It did not appear to make a difference on the close proximity needed of the TX antenna to the meter antenna. Review: Works well, just not easy to use. - This is a cheap frequency counter and it works well for what it is, just don't expect it to rival a $500 machine. It picks up everything, I tried it with my FRS radio to map it to use paired with a GMRS radio. It worked great, then I tried on a second radio and it was all over the place. That was until I realized my phone was next to it. Moved my phone away and it was back to working great. You have to be careful and aware of what it around it. Also for picking up tones, you have to hold the TX button for a moment to get the tones. It picks up frequency really quick, tones take another few seconds to read. ## Features - The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal strength indicator. - 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 C ~ 65 C can reach ± 2 ~ ± 4ppm accuracy. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01NA0957P | | Additional Features | Portable | | Best Sellers Rank | #76,677 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Frequency Counters | | Brand | Surecom | | Built-In Media | SF401plus Frequency Counter, UHF Antenna, User Manual, USB charger cable, USB AC adapter | | Color | Black | | Compatible Devices | Two-way radios or walkie-talkies within the 27Mhz-3000Mhz frequency range, particularly UHF band radios and those manufactured by Surecom | | Customer Reviews | 4.3 out of 5 stars 331 Reviews | | Frequency Range | 27Mhz-3000Mhz | | Item Weight | 3.84 ounces | | Manufacturer | Surecom | | Mfr Part Number | 4350441046 | | Model Number | 4350441046 | | Number of Batteries | 1 AA batteries required. | | Number of Channels | 128 | | Number of Packs | 1 | | Special Feature | Portable | | Talking Range Maximum | 5 miles | | Tuner Type | UHF | | UPC | 712383659576 | | Unit Count | 1 Count | | Voltage | 1.5 volts | | Water Resistance Level | Water Resistant | | Waterproof Rating | IP66 | ## Product Details - **Brand:** Surecom - **Color:** Black - **Frequency Range:** 27Mhz-3000Mhz - **Item Weight:** 3.84 ounces - **Number of Batteries:** 1 AA batteries required. - **Number of Channels:** 128 - **Special Feature:** Portable - **Talking Range Maximum:** 5 miles - **Voltage:** 1.5 volts - **Water Resistance Level:** Water Resistant ## Images ![Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder - Image 1](https://m.media-amazon.com/images/I/51M97jsm2KL.jpg) ## Questions & Answers **Q: How far away can the freq source be?** A: It's dependent on source output power. I mainly use it for verifying ENG wireless microphones during press check-ins. Don't typically get a reading until under 20" away from the TX source. **Q: Does it come with both the vhf and uhf antena?** A: This unit comes with (1)one 5" universal antenna that seems to cover the vhf/uhf frequencies very well, it even works well down to 72 MHz (model aircraft radio) not so much at 2.4gHz range. **Q: Could I use this to find out Hz vibration plate vibrating at?** A: This item only picks up RF frequencies. Vibration plate is an audio wave form I believe? You would need a sound wave sensor to see the frequency such as a Accelerometer. This is a sensor that measures the dynamic acceleration analyzer of a physical device as a voltage & frequency. **Q: Will this count cell phone frequencies (i.e. 4G)?** A: No it does not ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with digital & analog *by V***T on May 3, 2018* My unit works and properly reports the TX frequency and CTCSS tone, if sending, as indicated in the manual. Attenuation was off and you really need to get the supplied antenna next to the TX antenna to get a reading. Please review my notes below carefully. DMR was the only mode to provide a frequency reading when the meter was set to digital. P25 and C4FM (Yaesu Fusion) could be identified only when set to analog. I tested the following all with correct frequency results: - 10 meter band using analog FM - 6 meter band using analog FM - 2 meter band using analog FM/P25/C4FM - 70 cm band using analog FM/P25/C4FM - 33 cm band using analog FM - 70 cm band using digital DMR I am pleased with the function of this meter and that it charges via USB as well. Still, if your unit appears to not be working after it powers up, you probably do not have the antenna literally next to or touching the TX antenna. I also tested by adjusting the "RF detect level" in the settings and moving it from 5 to 40. It did not appear to make a difference on the close proximity needed of the TX antenna to the meter antenna. ### ⭐⭐⭐⭐⭐ Works well, just not easy to use. *by J***. on March 21, 2023* This is a cheap frequency counter and it works well for what it is, just don't expect it to rival a $500 machine. It picks up everything, I tried it with my FRS radio to map it to use paired with a GMRS radio. It worked great, then I tried on a second radio and it was all over the place. That was until I realized my phone was next to it. Moved my phone away and it was back to working great. You have to be careful and aware of what it around it. Also for picking up tones, you have to hold the TX button for a moment to get the tones. It picks up frequency really quick, tones take another few seconds to read. ### ⭐⭐⭐⭐ For the price, it is useful for me *by K***M on July 12, 2019* Review of the SF401 Plus. I only need this to use on the 2 meter ham band. I did test this with a Kenwood TH-F6 hand held unit set to 1/2 watt transmit power on 2 meters and this is what I discovered. 1) The Ctcss frequencies captured were spot on. 2) The frequency counter reading was about .6 mhz low. 3) The 'frq offset' adjustment only gave me about +/- 4 hertz, not nearly enough. Conclusions: 1)The frequency accuracy claimed is off by 600kc, there is no way to zero the unit effectively. 2)The Ctcss decoding is absolutely accurate. The SF401 PLUS worked about as well as I expected and is a useful tool for sniffing out unknown ctcss tones. Its use as a frequency counter might not be so good. Being off .6mhz at 147mhz is worse than advertised but actually is not too bad for a $50 RF tool. The sensitivity seems pretty low. I tried running the 'Rf detect level' up and down, not much of an improvement, with my 1/2 watt transmitter, I needed to have the antennas within about a foot to get a good reading. I would actually recommend this to a friend, after explaining what I have discovered. Enjoy, de K6WGX Oxnard CA ## Frequently Bought Together - Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder - XRDS-RF 50W PL259 UHF Male Plug RF Dummy Load, 50 Ohm - Surecom Gam3Gear SW-102S SO239 Connector Digital VHF UHF 125-525Mhz Power & SWR Meter --- ## 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.gr/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter](https://www.desertcart.gr/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-27*