Cell Signal Amplifier for Home Nikrans NS-550GDW

Image Cell Signal Amplifier for Home Nikrans NS-550GDW
Image Cell Signal Amplifier for Home Nikrans NS-550GDW
Cell Signal Amplifier for Home Nikrans NS-550GDW image 1
Cell Signal Amplifier for Home Nikrans NS-550GDW image 2
Cell Signal Amplifier for Home Nikrans NS-550GDW image 3
Cell Signal Amplifier for Home Nikrans NS-550GDW image 4
Cell Signal Amplifier for Home Nikrans NS-550GDW image 5

Download Datasheet

How to install mobile repeater

Indoor coverage:
5400 ft²
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  4.7/5 — 54 reviews
3 Band
Kit contents
  • NS-550GDW triband repeater,
  • indoor antenna,
  • outdoor antenna + 10m cable,
  • power supply,
  • manual
Shipping (3-7 business days) to United Kingdom
Customize your order
  • 5-step pre-delivery check
  • 30-DAY return policy
  • 3-YEAR warranty & service
  • Secure payments


NS-550GDW is a unique triband mobile signal repeater for home that improves mobile signals at three different frequencies, GSM 900 MHz & 1800 MHz and 2100MHz for 3G internet. The device is compatible for improving signal strength of all providers in Europe inclusive those of the UK.

Since these models are developed with better specifications and features than the previous ones, you can now get a coverage area as large as 500 m2(5400 ft2), which is suitable enough for middle-sized houses, parkings, garages, basements, offices, etc.

NS-550GDW triband signal booster guarantees crystal clear phone calls at 900 and 1800MHz frequencies, and blazing fast 3G internet at both 900 and 2100MHz. In addition, this triband repeater will also boost 4G Internet at 1800MHz frequency band. As a result, you get an opportunity to improve GSM, 3G, and 4G signals at the same time.

Here are a few of the useful features of this model:

  • Shut-off function helps the device avoid damage resulting from incorrect installation or self-oscillation.
  • Automatic Gain Control automatically adjusts gain levels based on incoming signal strength.
  • Manual Gain Control is ideal for tech-savvy users preferring to control gain levels manually.
  • Automatic Level Control adjusts gain levels with the purpose of avoiding signal interference.
  • CE and RoHS certificates of conformity to European health and safety standards. The device does not emit and harmful radiation and is 100% safe for human usage.

Order this booster and stabilise your GSM, 3g and 4G internet connection with an all-in-one booster!


Coverage: 5400 ft²
Up-link freq: 68
Down-link freq: 935-960 & 1805-1880 & 2110-2170
Up-link Gain: 60 dB
Down-link Gain: 68 dB
Power Output: 13 dBm
Working t °C: -25/+55 °C
Humidity: 5 - 95 %
Size (mm): 250 × 220 × 52
Booster Weight: 3.2 kg
Power supply: Input AC90~264V,output DC5V/2A
Model Year: 2017
Download Manual Download Datasheet

How it works

This triband cell phone signal amplifier is a reliable device that is absolutely perfect from a technical point of view. Despite its opportunity to work with different types of mobile network simultaneously, it is extremely simple in use. Even if you have never seen any devices of this kind before, it won’t be a problem for you to install it and switch it on. 1 hour is a maximum period of time that is necessary for a person without any previous technical experience to install NS-550GDW and to start enjoying the improved mobile connection. Two antennas and one amplifier box are the main components of this unique device that is intended to make your mobile communication better.

Customer Reviews

 ·  S  ·  Verified Buyer  · 

3.Advanced features

This model is one of the most powerful booster models. It has a number of advanced features. It can automatically adjust the gain level and at the same time it has the function of manual gain control for those, who would like to change the gain by themselves, although personally I don’t use this function at all. During the period when I’ve been using the booster I have never experienced signal interference or any other problems.

Dear Emma, thank you for the review. We are happy to know that you are satisfied with the product. Best regards, Support team.

 ·  I  ·  Verified Buyer  · 

No lightning protection

There was no lightning protection in the standard kit. And for me this was a question of safety, so I ordered it additionally. The booster is okay.

Dear Ian, thank you for the feedback. Your opinion means much to us. Kindest regards, Support team.

 ·  S  ·  Verified Buyer  · 

Good for garage

I bought this booster a week ago. I installed it in the garage, and you know what, it’s beyond my expectations. The result is just amazing. I can make and receive calls without any obstacles. I even can enjoy 4g connection which I could only dream about. The connection is stable and uninterrupted around the whole area. Don’t even hesitate whether to buy this booster or not! It’s absolutely worth its money.

Dear Steve, thank you for the review. We are glad to know that you are satisfied with the result. Kindest regards, Support team.

 ·  C  ·  Verified Buyer  · 

Good service

I’d like to thank the manager of the support team. He was very polite and helped choose the most suitable model for my office. He explained everything in detail and patiently answered all my questions.

Dear Courtney, thank you for the review. We would be glad to see you at our store again. Kindest regards, Support team.

 ·  J  ·  Verified Buyer  · 

No manual

The standard kit didn’t include the installation manual, or maybe they just had forgotten to put it In any case, I found the installation guide at the website, all the installation schemes were provided there.

Dear Jack, thank you for the feedback. Please, contact us in case you need help. Kindest regards, Support team.

 ·  C  ·  Verified Buyer  · 


If only I had installed it earlier, I would have saved my nerves! The booster ensured strong mobile signal in the office. I recommend it to everyone who is sick and tired of poor coverage.

Dear Mia, thank you for leaving a review. Keep on enjoying it! Best regards, Support team.

 ·  A  ·  Verified Buyer  · 

Improves weak signal

The device fully corresponds to the description placed at the official website of the company. The booster is compact and nice; it doesn’t occupy much space at all. This model has no LCD screen, although all the other functions are practically the same as in LCD models. The standard kit came to my place without the user’s manual, but I found the installation guide online, so it wasn’t a big problem.

Dear Adam, thank you for the review. Please, contact us in case you need help. Kindest regards, Support team.

 ·  I  ·  Verified Buyer  · 

It gave a remarkable improvement

The signal service of our operator has always been mediocre where we live. Especially inside the house and in the garage – sometimes we couldn’t even receive or send texts. Our neighbors suffer from the same kind of issues. The operator can’t do anything about it at all. But this receiver has actually solved the problem. When it’s switched on, download speeds are almost ten times faster than when we switch it off. We don’t suffer from lost service anymore. When I installed the antenna, I pointed it into the direction of the nearest cell tower I was aware of, and it worked out perfectly. I think I’ll recommend it to our neighbors too.

Hello Israel! Thank you for your review. We’re happy that everything worked out so well. Contact us if you need anything else from our store! Best regards, Support team.

 ·  B  ·  Verified Buyer  · 

My location issues were forgotten

The location I live in is certainly not the best place for internet and GSM signal. It’s a small valley between two large hills, and it’s surrounded by bodies of water and a forest as well. An absolute combo of signal blockers. As a result, there was barely any service at my place. After I started working from home, I needed good service badly, so I decided to purchase this repeater. I placed the outer antenna on the roof of my two-story house, and my cell phone now has all of the signal bars. The internet speed is also as high as my provider makes it, without any disruptions. The indoor antenna is strong enough to distribute the signal all over the house and even in the yard that goes inside the repeater’s working range. It’s unbelievably convenient, totally worth my money, and I love it!

Hello Bruce, we’re very glad to hear that your signal issues are solved despite the location you live in! Best regards, Support team.

 ·  G  ·  Verified Buyer  · 

Very easy to install

The package was intact, and the details inside were intact and working as well. When I installed the booster, I didn’t even have to tune it – it just worked by itself. Of course, I had to place the outer antenna outside, the inner antenna in the room, and I plugged this construction into the power socket - that takes however some time. Here’s when all the steps ended, and I don’t have to do anything to it ever since.

Hello Garry, we’re glad that you liked our product so much, and we thank you for your positive review. Best regards, Support team.

 ·  J  ·  Verified Buyer  · 

Useful device

If you want to buy this model, pay attention to the frequencies first, and make sure that you know the exact frequencies that your operator works on. This device is really great and it amplifies the signal very significantly, I now have signal where I previously couldn’t catch it at all. The support team is very friendly and they answered all of my questions. I loved buying from this store and recommend it to anyone who’s reading this.

Hello Jake! We’re happy that you liked our store and the work of our tech support team. Thank you for writing a review! Best regards, Support team.

 ·  T  ·  Verified Buyer  · 

Very happy with my purchase

I bought this booster for my family home, because it has poor cell phone service and that’s what my mom complained about the most. I installed the booster in the highest point on the house that I could reach myself, and it works great now. I can load any video or download anything I want, and I can even use our home hotspot for watching movies. We couldn’t even make a normal call before. It’s amazing!

Hi Theon! It’s good to know that our product has helped your family get a decent signal in your house! Best regards, Support team.

 ·  E  ·  Verified Buyer  · 

Wish I Had Bought it Much Earlier

This booster does miracles! Immediately after the installation my signal became stronger and I was able to use my data. I could hardly believe it was possible. Thank you very much for making my communication untroubled.

Dear Emma, thank you for the review. We are so glad that you are satisfied with our work. Best regards, Support team.

 ·  D  ·  Verified Buyer  · 

Didn’t Expect it’s so Effective

I bought it a month ago because the level of signal at home was unbearable. Actually, I was gladly surprised as the result was fascinating – stable signal in every corner of the house. Recommend it!

Dear Daniel, thank you very much for leaving a review. We would be glad to see you again. Best regards, Support team.

 ·  M  ·  Verified Buyer  · 

Ensures stable reception

The booster is reliable. It ensures stable reception of mobile signal. Using a mobile phone became more pleasant as there are no more disconnections, the audibility is much better.

Dear Max, thank you for leaving the feedback. We are glad that you are pleased with the result. Best regards, Support team.

 ·  M  ·  Verified Buyer  · 

I’m Happy

The signal inside my house was so awful, that it was hard to believe that anything could help me. Then a friend of mine advised installing a mobile booster. He helped me to choose the model and voila – I am the happiest person ever!

Dear Morgan, thank you for your review. We are so glad that you are happy about your purchase. Best regards, Support team.

 ·  R  ·  Verified Buyer  · 

Excellent for Office

I have bought it for my office and I like the way it amplifies the signal. All my colleagues have noticed that the quality of mobile connection has become much better. The device is effective and reliable.

Dear Ruby, thank you for the review. We are glad that you all liked the booster. Best regards, support team.

Case Studies

Roger Bousfield, Worcester

Finally we have a decent connection!

After I plugged in the signal repeater NS-550GDW, the signal became strong and stable in every room of my office, even the further ones – it’s equally strong throughout the whole booster’s working area. And no matter how many people were using it simultaneously, it never affects the signal strength in a bad way. That’s exactly what I needed in my office to help us work well, make calls and use the internet.

Michael Davis, Harrogate

Wide range and attractive prices.

We decided to go with Mobile-signal-boosters.co.uk’ signal repeater for several reasons. They had complete and detailed information about everything we needed to know, their boosters have adequate prices, their payments are secure, and they have a wide range of product models for us to choose from. We needed something that would work throughout our whole house, on both floors, and we found it at a very attractive price.

Stuart Herrington, Rochdale

Thank you for great product!

I really want to thank Mobile-signal-boosters.co.uk and their team for helping me out with my issues. My case was pretty classic, I think, but they still managed to choose a really affordable booster for me, with no tricks. Their website is very helpful and contains all the information about how it all works, and their support ream can help with any question. I totally recommend Mobile-signal-boosters.co.uk to anyone who has weak signal.

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