Free Returns, No Questions Asked

60-Day Risk-Free Trial

Extended 3-Year Warranty

Signal Strength Guarantee

5 Bars Everywhere Guaranteed Or Your Money Back

Instantly boost mobile signal and data in your whole home. Works with all UK networks.

Safe Trusted by 18,000+ UK Homes

60-Day Trial · Free Shipping · 3-Year Warranty

Safe Trusted by 18,000+ UK Homes

Why You’ll Love It

Mobile Signal Booster 4G – 600 sq. m.
Mobile Signal Booster 4G – 600 sq. m.
Mobile Signal Booster 4G – 600 sq. m.
Mobile Signal Booster 4G – 600 sq. m.
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60-Day Risk-Free Trial

60-Day Risk-Free Trial

3-year Warranty

3-year Warranty

Free Shipping & Returns

Free Shipping & Returns

Stars Stars 58 Reviews Arrow

Mobile Signal Booster 4G – 600 sq. m. (RW6BS)

  • Checked Works on EE, O2, Vodafone, Three & more
  • Checked Supports 3G / 4G / 5G – Calls & Data
  • Checked Coverage up to 300 m²
  • Checked Multi-User & Multi-Device Compatible
  • Checked 15-Min DIY Setup
  • Checked 98.7% Success Rate
  • Crystal-clear calls & strong data everywhere
  • Instant signal boost the moment you plug it in
  • Longer phone battery life – no endless searching
  • Professional-grade tech
  • Enjoy stress-free connectivity in every room
  • 60-Day Free Trial + Free Returns
  • 3-Year Warranty – Full Coverage
  • Guaranteed 5 Bars or Your Money Back
  • 24/7 UK Tech Support
  • CE & RoHS Certified

£279

or

Add Indoor Aerial Expansion Kit!

£0 £45

* Provide coverage in another portion of home

Add Indoor Aerial Expansion Kit!

* Provide coverage in another portion of home

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LPDA

£0 value

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Extra cable (low loss)

£0 value

+
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Internal Antenna

£0 value

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What’s in the Box

Booster Unit

2 x Indoor Aerial

Power Supply

15M Outside Cable

5M Inside Cable

Outdoor LPDA Aerial

Mounting Bracket

15M Outside Cable

Cable Mounting Clips

2 Way Splitter

10M Inside Cable

5M Inside Cable

Try Signal Hero – 100% Risk-Free

Boost your signal with confidence. Enjoy a 60-day trial, 3-year warranty, and no-questions-asked FREE returns. Guaranteed 5 Bars or your money back.

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Risk-Free Purchase — What it Really Means?

Why You'll Love It

CE & RoHS Certified

Free Returns

All UK Networks

3G/4G/5G Calls & Data

Plug & Play Setup

Multi User. Multi Device

Signal Hero vs Other Brands

  Signal Hero Others
Full-Home Coverage
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Works with All UK Networks
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Plug & Play Setup
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60-Day Money-Back Guarantee
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3-Year Warranty
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Free UK Shipping
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CE Certified
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Rated 4.8/5 on Trustpilot
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* Comparison based on like-for-like models and published policies.

Why 18000+ Customers Choose Signal Hero

1

5 Bars, Guaranteed

Money-back if you’re not delighted.

2

Boost Starts in Seconds

Clear calls & faster data after power-on.

3

15-Minute DIY Setup

Plug in, connect antenna, done

4

Save £200+/yr on battery

Stops signal-search drain

5

Works in Weak-Signal Areas

Pro Kit handles 1–3 bars outside.

6

No Monthly Fees—Ever

No SIMs, apps, or subscriptions.

3 Steps to Full Bars

1

Place the Outdoor Antenna

Mount the antenna where you get the best signal.

2

Connect the Booster Inside

Plug in the booster and connect to the antenna.

3

Enjoy Full Bars Everywhere

Clear calls,fast data, and no more dead zones.

FINAL OFFER

Mobile Signal Booster 4G – 600 sq. m.

(up to 600 sqm)

Fix Poor Signal Forever - Or You Don't Pay

Mobile Signal Booster 4G – 600 sq. m.
Limited-time promo ends in:

Only 18 left at this price.

Use Code SIGNAL20 — Save £20

WHAT YOU GET
  • Checked

    Signal Hero Booster Kit

    £279

    Full-Home Coverage

  • Checked

    15-Min DIY Setup Guide

    Included

    No Tools Needed

  • Checked

    Works with All Networks

    Included

    EE, O2,Vodafone,Three, etc.

  • Checked

    Instant Boost

    Included

    (Calls + Data 3G,4G,5G)

FREE BONUSES TODAY
  • Checked

    Wi-Fi Signal Booster

    £69

    FREE

  • Checked

    3-Year Extended Warranty

    £99

    FREE

  • Checked

    Free UK-Wide Shipping

    £12.95

    FREE


Your Bundle Price: £279

Limited-time promo ends in:

Only 14 left at this price.

Use Code SIGNAL20 — Save £20

Security 60-Day Risk-Free Trial

98.7% Success Rate | 58+

Stars Stars

Reviews

See It In Action!

success 98.7% Success Rate - CE Certified - 60-Day Trial
stars

Over 1200+ five-star reviews

JOIN 18K+ HAPPY CUSTOMERS

Smart Meter Booster Demonstrated by Cyril and His Wife

Rural House Signal Booster Core – Boosting Data for TV and Mobile

Professional Series Booster Kit for Office – Demonstrated by Jack

Signal Hero Core Booster Kit – Work-from-Home Demo by Kierran

Custom High-Power Booster Kit Solution for a British Office

Smart Meter Booster Kit Solution

Rural Pro Booster Kit Amplifier – From No Signal to Full Bars

Rural Booster Kit for a Small Cabin

Home Booster Kit – Before and After Results

Booster Kit for a Large House

Award-Winning Signal Booster (2025 Winner)

reviewsbee certificate

Always reachable when it matters

High-gain amplification with auto-gain control keeps your phone connected across the house-so calls go through when you need them most.

Always reachable

Full bars-even in weak-signal homes

Got only 1-3 bars? The Pro Kit makes it strong throughout your home.

Full bars-even in weak-signal homes

Work without interruptions

Stable upload and clear voice for Zoom/Teams. Boost supports 3G/4G/5G calls & data-perfect for hotspotting and video calls.

Work without interruptions

FINAL OFFER

Mobile Signal Booster 4G – 600 sq. m.

(up to 600 sqm)

Fix Poor Signal Forever - Or You Don't Pay

Mobile Signal Booster 4G – 600 sq. m.
Limited-time promo ends in:

Only 7 left at this price.

Use Code SIGNAL20 — Save £20

WHAT YOU GET
  • Checked

    Signal Hero Booster Kit

    £279

    Full-Home Coverage

  • Checked

    15-Min DIY Setup Guide

    Included

    No Tools Needed

  • Checked

    Works with All Networks

    Included

    EE, O2,Vodafone,Three, etc.

  • Checked

    Instant Boost

    Included

    (Calls + Data 3G,4G,5G)

FREE BONUSES TODAY
  • Checked

    Wi-Fi Signal Booster

    £69

    FREE

  • Checked

    3-Year Extended Warranty

    £99

    FREE

  • Checked

    Free UK-Wide Shipping

    £12.95

    FREE


Your Bundle Price: £279

Limited-time promo ends in:

Only 11 left at this price.

Use Code SIGNAL20 — Save £20

Security 60-Day Risk-Free Trial

98.7% Success Rate | 58+

Stars Stars

Reviews

Your Questions, Answered.

Filter by

Installing our boosters is easy - in fact, 98% of our customers do it themselves. The device is plug-and-play, so all you need to do is attach the units with cables and mount the antennas. We provide simple installation guides and videos to help you along the way. Moreover, we offer technical aftersales support after the delivery of your device, so you can have peace of mind knowing we're here to help.

If you want to find the best booster for you there are 2 easy options: Use our Booster Finder Wizard to find the best booster based on your needs. If you're still having trouble finding the right booster after using the Wizard, contact our technical support team via chat or phone. They'll be happy to assist you in finding the best solution.

1. At Signal Hero, we are committed to providing high-quality boosters at unbeatable prices. 2. Since 2010, we've been dedicated to improving cellular signals with our specialized boosters, putting our CUSTOMERS FIRST every step of the way. 3. Our boosters fix more than the signal. Signal Hero customers enjoy fewer dropped calls, better voice quality, faster internet speeds, and improved video streaming. 4. In addition, we provide peace of mind with our industry-leading 24/7 after-sale service: - Lifetime Support - 3-Year Warranty - Installation Services (for enterprise solutions) 5. And if it’s not a perfect solution for you, we’ll refund your purchase or replace it. No hard feelings.

Signal Hero mobile signal booster is the only working solution if you have a weak signal and dead zones. It helps to improve signal strength so you can access the internet more quickly, and stream videos without buffering. With our booster you can make and receive calls without interruption, ensuring you're always in touch with your family and friends. In general, the booster catches the signals from the nearest cell tower in the area by the external antenna which is included in the kit, then it sends the signal to the booster box. The box amplifies the signals, ensuring reliable coverage even in areas with poor signal strength, and the internal antenna spreads the signals inside the closed area.

Yes. This is exactly the type of situation the booster is designed to improve. The system captures the available signal outside your building using the aerial, then amplifies it and distributes it indoors through the internal antenna. When there is usable signal outdoors, the booster can significantly improve indoor coverage. Customers typically move from unreliable indoor signal to stable, usable coverage that supports clear calls and consistent mobile data throughout the coverage area. If you are unsure about signal levels at your property, our team can guide you before or after purchase to help optimize the setup.

Professional Specifications

Coverage (sq. m.)

Up to 600 sq.m.

Place to use

Suitable for areas from 300 to 600 sq.m.

Operator

EE Mobile (2G/4G -in cities)
Orange (2G/4G)
Virgin Mobile(2G/4G)
Three (4G)
BT Mobile (4G)
Vodafone (4G)
Giff Gaff (4G)
Talk Talk (4G)
Tesco (4G)

Frequency

800

Users Supporting Simultaneously

75

Up-link

791-821 MHz

Down-link

832-862 MHz

Voltage

AC/220V±10% 45~55Hz

Dimensions

165*115*35 (mm)

Weight

0.3 kg

Port VSWR

≤1.8DB

Noise figure

≤6dB

Ambient temperature

-15°C~55°C

PRODUCT ID

810007447

LEGAL COMPLIANCE

This is a consumer device approved under CE and RoHS standards for Home, Hotel, Office use.

checkRound Safe for DIY Installation

install Download Full Specification Sheet

Get complete technical details (PDF)

Smart Features, Made Simple

1

ALC

Auto-optimized signal

Prevents overload or weak performance by auto.

2

AGC

Stable calls & data

Keeps conversations and browsing smooth.

3

MGC

Pro tuning on demand

Installer control for complex setups.

4

Install

Install check

Warns you if setup isn’t correct.

5

Anti-osc

Anti-feedback

Blocks interference loops that cause instability.

6

Standby

Energy smart

Reduces noise and saves power when idle.

7

Codes

Fault code alerts

See exact fault code for fast fixes.

8

Tuya

Remote control

Monitor & adjust from your phone.

9

LCD

Live signal LCD

Real-time strength per band.

Excellent

Rated 4.9/ 5 Stars

Based on 72 review

Stars

We had an old device that worked for 3G

We had an old device that worked for 3G and 4G but it stopped completely, and it was awful trying to work with almost no signal. On a good day we might get 1 or 2 bars in one tiny spot in the office. ‎ ‎While we were looking for options we came across Signal Hero. They had a solution that supports multiple networks and some 5G signals, so we decided to give it a try. ‎ ‎The whole process with Signal Hero was smooth. They guided me through everything, checked our signal properly, and even made a custom installation plan for our place. I was a bit concerned about compliance, but they provided the relevant documentation and we were comfortable proceeding. ‎ ‎We ordered the all networks 4 band kit. Now the office has a solid 4 to 5 bars throughout most areas. It is brilliant. Very happy with both the service and the product.

Praise

Stars

I’d been struggling with phone calls…

I’d been struggling with phone calls for about six months. No idea what changed, but the signal at my place suddenly went from “not great” to absolutely terrible. After a bit of Googling I ended up on the Signal Hero website. The team asked me to check my outdoor signal and see which mast I was picking up from. What really surprised me is I’d never had 5G here before, but once the booster was switched on I started getting 5G straight away. Honestly felt like magic, I didn’t even realise these boosters were a thing. We’ve just finished the installation in our caravan as well. Inside we used to have 1 bar, maybe 2 if I stood in the right corner. Now it’s solid. Many thanks to the team, genuinely recommended!

Rick

Stars

I was really struggling to get any…

I was really struggling to get any signal in the basement service from all mobile providers here is just rubbish. At first, the booster kit didn’t seem to fix it, so I got in touch with the Signal Hero support team. They checked everything and found out my phone was picking up a specific 5G signal that worked great outdoors but not with the booster. It actually worked fine on other phones! They swapped my unit for a different one, and now I’ve got full bars everywhere. Big thanks to David and Diana for the professional and friendly help.

Steve

Stars

Highly recommended

I bought a mobile booster from Signal Hero for my garden office. It was good value and most importantly, it was easy to install and works well. Both before and after I placed the order, I received outstanding technical help from their signal expert George, in particular with advice on signal strength and best placement for the external aerial. I now have 4 bar mobile stength in my office and highly recommend Signal Hero. I would certainly use them again.

JimH

Stars

Bought this booster for my bunglow

Bought this booster for my bunglow and I've got to say it's doung a cracking job. Used to barely scape 1 bar in the living room, now I'm sitting on 4 solid bars, quite the difference! Massive thanks to George for walking me through all the tests, helping me pinpoint the perfect spot for the outside aerial and even coming up with a way to run the cables without any drilling. Top bloke, much appreciated!

Duane Baity

Stars

brought the car booster for our company

brought the car booster for our company vans. Wasn't sure at first, but after a few weeks on the road, we're impressed. Drivers can stay in touch reliably now, no more dropped comms. Might kit out the fleet soon.

Christopher

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What Signal Hero customers say

Overall rating

4.2

Stars Stars 58 reviews

5 Stars

4

4 Stars

8

3 Stars

0

2 Stars

0

1 Stars

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Samuel H.

checked Verified Customer

2026/04/11

Stars Stars

Mobile Signal Booster 4G – 600 sq. m.

Like Lazarus, my mobile signal has come back from the dead thanks to this bit of kit.

Jake F.

checked Verified Customer

2026/03/30

Stars Stars

Mobile Signal Booster 4G – 600 sq. m.

After puttin some efforts to place the external antenna on the roof, we have finally managed to install the whole kit. Certainly we got improvement of the signal reception in our house

Wynona G.

checked Verified Customer

2026/03/17

Stars Stars

Mobile Signal Booster 4G – 600 sq. m.

I love this product. Not only does it improve the signal in my home but it also comes with a 2-year warranty which guarantees me quality service for a long time. Hoping it lasts.

Jodie S.

checked Verified Customer

2026/03/09

Stars Stars

Mobile Signal Booster 4G – 600 sq. m.

Not having a decent signal at home was a constant source of worry for me. I have chronic anxiety and need to stay in touch with my family at all times. My dad came round and fixed one of these up for me and now I can relax a bit more.

Kian M.

checked Verified Customer

2026/02/22

Stars Stars

Mobile Signal Booster 4G – 600 sq. m.

Installing the signal booster can be complicated at times but luckily the tech support team are there to quickly respond to all queries in a very pleasant manner

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