How far away can the freq source be?

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.

Does it come with both the vhf and uhf antena?

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.

Could I use this to find out Hz vibration plate vibrating at?

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.

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SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder

SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder

Product ID: 69765552

Details

Brand
Surecom
Color
Black
Frequency Range
27Mhz-3000Mhz
Item Weight
3.84 ounces
Number of Batteries
1 AA batteries
Number of Channels
128

📡27MHz-3000MHz ultra-wide freq range

🔋Built-in Li-ion battery with USB charging

⏱️0.2s rapid response time

331.41 DT

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Description

📡 Stay tuned, stay precise — the SF401 Plus keeps your frequencies flawless!

INSTANT SIGNAL READOUT - Lightning-fast 0.2-second response time keeps you ahead in critical frequency monitoring.
SMART POWER MANAGEMENT - Auto power-off and LED battery indicator maximize uptime and keep you powered through long workdays.
PRECISION TCXO STABILITY - Temperature-compensated crystal oscillator ensures ±2 to ±4ppm accuracy even in extreme conditions (-45°C to 65°C).
COMPACT PORTABLE DESIGN - Lightweight 113g body with intuitive 4-button control fits perfectly in your tech arsenal on the go.
ULTRA WIDE FREQUENCY COVERAGE - Seamlessly measures 27MHz to 3000MHz, covering all your two-way radio needs.

The SF401 Plus is a professional-grade portable frequency counter designed for two-way radios and walkie-talkies, covering an expansive 27MHz to 3000MHz range. Featuring a temperature-compensated crystal oscillator for high accuracy, a rapid 0.2-second response time, and a vibrant color LCD, it offers reliable, on-the-go frequency measurement. Its compact design, built-in rechargeable battery, and smart power-saving features make it an essential tool for field technicians and radio enthusiasts alike.

Specifications

ASIN	B01NA0957P
Additional Features	Portable
Best Sellers Rank	#93,396 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 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 (329)
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
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

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331.41 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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