---
product_id: 226003462
title: "Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio"
brand: "fumei"
price: "€ 265.30"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fumei"
url: https://www.desertcart.com.cy/products/226003462-youmei-rs-50-digital-swr-watt-meter-vhf-uhf-125
store_origin: CY
region: Cyprus
---

# Backlit LCD for clear readings anytime 125-525 MHz wide frequency range Dual power options: AAA batteries or USB Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio

**Brand:** fumei
**Price:** € 265.30
**Availability:** ✅ In Stock

## Summary

> 📡 Stay connected, stay ahead — master your radio waves with precision!

## Quick Answers

- **What is this?** Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio by fumei
- **How much does it cost?** € 265.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/226003462-youmei-rs-50-digital-swr-watt-meter-vhf-uhf-125)

## Best For

- fumei enthusiasts

## Why This Product

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

## Key Features

- • **Flexible Power Modes:** Operate via standard AAA batteries or convenient USB power for uninterrupted field use.
- • **Low Insertion Loss Design:** Maintain signal integrity with under 0.3dB loss, perfect for permanent installations.
- • **Instant SWR & Power Readings:** One-button display of forward, reflected power, and VSWR to optimize antenna performance on the fly.
- • **Precision Frequency Coverage:** Seamlessly monitor VHF/UHF bands from 125 to 525 MHz for versatile radio setups.
- • **User-Friendly Backlit Display:** Easily read measurements in any lighting condition with an auto-off backlight that reactivates on transmission.

## Overview

The Youmei RS-50 Digital SWR/Watt Meter is a compact, lightweight tool designed for professional and hobbyist two-way radio users. Covering a broad 125-525 MHz frequency range with up to 120W power handling, it delivers accurate forward/reflected power and VSWR readings via a clear backlit LCD. Its low insertion loss and flexible power options (AAA batteries or USB) make it ideal for both field testing and permanent mobile installations, ensuring optimal antenna performance and signal quality.

## Description

Specifications: Frequency range: 125-525 Mhz Center calibrated: 145Mhz(VHF) 435Mhz(UHF) Power range:0-120W +/- 5% Impedance: 50 ohm Connector: M-J(So-239 (M)) Dimension: 70W x 78H x 30D mm Net Weight: 220g Measurement: 1. Apply output of transceiver to "TX" and antenna or load to "ANT". 2. "POWER" on for ready to use. 3. LCD display show simultaneously "Fwd/Ref Power and SWR". 4. For back-light, please switch "LIGHT" to "ON". 5. No function in 30 seconds, the backlight will automatically off. 6. Once PTT launched, the backlight will be back. Battery installation: 1. Remove the black screw from the cover to open the rear panel. 2. Install 2 pcs "AAA" batteries. 3. Can be used with alkaline or Ni-Ca, Ni-MH rechargeable battery. 4. This unit has no built-in charging circuitry. 5. Be sure to correct polarity of battery. 6. Remove the battery if the unit won't be used in long period. Packages includes: 1 x SWR/Watt Meter(no batteries)

Review: BON PRODUIT
Review: Got this for a fixed mobile install. Picked up a USB to 12v converter and USB cable so I could wire into the car's accessory power. SWR seems to work from my antenna swaps (various antenna on same NMO mount) and I did get better readings on some antenna than others. Not bench tested. Light does go out after some bit with no TX. Does not light or meter any RX. Used 3M Dual Lock to mount so I could remove as needed and use battery's as a backup. As others said battery life alone is goof for quick field testing. Exactly what I was expecting; Perfect size and display for my use.

## Features

- Forward/Reflected/VSWR ration in one push button
- LCD backlight display for easy reading
- Convenient control layout for easy operation
- Powered by two AAA batteries/rechargeable batteries or external USB port
- Low insertion loss(0.3dB or lower) structure allows it to be connected permanently

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0749QHDDW |
| Best Sellers Rank | 251,934 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 5,598 in Radio Communication |
| Guaranteed software updates until | unknown |
| Item model number | RS 50 |
| Manufacturer | DotDotTech |
| Product Dimensions | 7 x 3 x 7.8 cm; 220 g |

## Product Details

- **Brand:** Fumei
- **Colour:** Black
- **Frequency range:** 125-525 MHz
- **Included components:** SWR/Watt Meter
- **Item weight:** 220 Grams
- **Number of channels:** 2
- **Product dimensions:** 7.8H centimetres
- **Special feature:** Uhf
- **Voltage:** 3 Volts
- **Water resistance level:** Waterproof

## Images

![Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio - Image 1](https://m.media-amazon.com/images/I/51LqB1PKuzL.jpg)
![Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio - Image 2](https://m.media-amazon.com/images/I/51idjdAk60L.jpg)
![Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio - Image 3](https://m.media-amazon.com/images/I/61IaTEKWwhL.jpg)
![Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio - Image 4](https://m.media-amazon.com/images/I/61YhEkJD75L.jpg)
![Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio - Image 5](https://m.media-amazon.com/images/I/61n0ItKLrKL.jpg)

## Questions & Answers

**Q: Does this have a metal housing?  has anyone compared it to the mfj-847?**
A: Yes it has a metal housing and it works perfectly. It looks as if it is manufactured by the same company as the MFJ-847. I am very pleased with this unit.

**Q: What country is it made in?**
A: Made in china.
Works good, but eats batteries.  Would not buy it again.

**Q: Will this work for dmr (digital) vhf frequencies?**
A: Yes

**Q: Will your standard PL259 antenna end screw on this?**
A: Yes, this unit can be connected to standard PL259 antenna

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***C on 4 July 2024*

BON PRODUIT

### ⭐⭐⭐⭐⭐ Review
*by S***K on 30 October 2022*

Got this for a fixed mobile install. Picked up a USB to 12v converter and USB cable so I could wire into the car's accessory power. SWR seems to work from my antenna swaps (various antenna on same NMO mount) and I did get better readings on some antenna than others. Not bench tested. Light does go out after some bit with no TX. Does not light or meter any RX. Used 3M Dual Lock to mount so I could remove as needed and use battery's as a backup. As others said battery life alone is goof for quick field testing. Exactly what I was expecting; Perfect size and display for my use.

### ⭐⭐⭐⭐⭐ Review
*by E***E on 3 December 2020*

THis works exactly as hoped and the price was right. I only needed to tune a few antennas and it worked well

## Frequently Bought Together

- Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio
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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-14*