--- product_id: 69765552 title: "Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder" brand: "surecom" price: "VT17377" currency: VUV in_stock: true reviews_count: 12 category: "Surecom" url: https://www.desertcart.vu/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter store_origin: VU region: Vanuatu --- # Β±2~4ppm ultra-stable TCXO accuracy 27MHz-3000MHz wide freq range Built-in Li-ion rechargeable battery Surecom SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder **Brand:** surecom **Price:** VT17377 **Availability:** βœ… In Stock ## Summary > πŸ“Ά Stay ahead of the signal game with pinpoint precision! ## 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?** VT17377 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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 - β€’ **Smart Signal Decoding:** Integrated CTCSS/DCS decoder for seamless tone detection - β€’ **User-Centric Controls:** Intuitive 4-button interface with adjustable LCD dimming & auto power-off - β€’ **Broad Spectrum Mastery:** Covers 27MHz to 3000MHz for virtually all two-way radios - β€’ **Instant Frequency Insight:** 0.2s response time with clear color LCD display - β€’ **Precision Meets Portability:** Compact 113g design fits your on-the-go tech toolkit ## Overview The SF401 Plus is a portable frequency counter meter designed for professionals needing fast, accurate frequency measurements from 27MHz to 3000MHz. Featuring a temperature-compensated crystal oscillator (TCXO) for Β±2~4ppm accuracy, a built-in CTCSS/DCS decoder, and a vibrant color LCD, it offers quick 0.2-second readings. Lightweight and rechargeable via USB, it’s engineered for field use with easy 4-button controls and auto power-off to maximize battery life. ## 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 Β± 2 ~ Β± 4ppm accuracy. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01NA0957P | | Additional Features | Portable | | Best Sellers Rank | #58,306 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 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 4.3 out of 5 stars (321) | | Frequency Range | 27Mhz-3000Mhz | | Item Weight | 0.24 Pounds | | Manufacturer | Surecom | | Mfr Part Number | 4350441046 | | Model Number | 4350441046 | | Number of Batteries | 1 AA batteries required. | | Number of Channels | 128 | | Talking Range Maximum | 5 Miles | | Tuner Type | UHF | | UPC | 712383659576 | | Unit Count | 1.0 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:** 0.24 Pounds - **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. ### ⭐⭐⭐⭐⭐ Works, read the review. *by O***O on January 2, 2021* So I bought this unit to test frequencies, though after reading a few reviews I found many others had to hold the antenna near or on the device emitting the signal. That said, it makes sense. Otherwise it will pick up any noise/frequencies in the air and will not be accurate to what you're trying to measure, this still the case when I held my test unit to the counter. It works well, though it could be better. However, I found going direct by feeding the signal directly into the input of the counter with an appropriate cable to both units, the counter measured far more accurately and consistently. That and it no longer picked up any surrounding noise in the air. Recommended not testing in the house with WiFi, cell phones, or any other device that transmits so it doesn't skew your results. Also connect directly using the right connection is by far the best way. Hope this helps. I'm sure someone with much more knowledge on frequencies and electronics would be able to fill in proper info and suggestions. ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter](https://www.desertcart.vu/products/69765552-surecom-sf401-plus-27mhz-3000mhz-radio-portable-frequency-counter-meter) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-16*