Home ProductsTri Band Repeater

Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

China Shenzhen Atnj Communication Technology Co., Ltd. certification
China Shenzhen Atnj Communication Technology Co., Ltd. certification
Customer Reviews
Good service and fast delivery

—— Aki Vaattovaara,Sweden

It arrived in time I am very satisfied with the support. The product si in very good conditions. I proved it and works very well.

—— JC Saavedra Libia,Peru

I an very satisfied with the Quality of the product. Also the miss that support me is very kind. she resolved all my doubts perfectly. the product arrived at time as usual.

—— JC Saavedra Libia,Peru

Ms Anne Wang works hard to provide very good service for customers. A pleasure to deal with. Product is as described and good value for money.

—— Lindsay Pettigrew,Australia

Excellent product as describe. Very good seller ! 100% recommended, 100% satisfied ! shipping very fast to Cambodia.

—— loem kom,Cambodia

I have received the repeater in 5/6 days, it is a robust case repeater, it looks nice, and it work perfectly. I suggest this brand repeater. good work

—— andrea cristofanini,Italy

получил товар. качество и параметры сответствуют описанию. продавец молодец!

—— akbar karaev,Uzbekistan

Super fast delivery and superb service/help from supplier. I haven't had a chance to try out the product but I am confident it will work fine. If not, the supplier is really helpful and I am sure he will assist me with futher installation details

—— Attila Kinkopf,United States

I haven't used the product yet but it looks like a quality product. Wave Luo was very helpful, thank you very much!!!!

—— Shephard Mack,South Africa

ATNJ, You got good products with good services, fast and easy to communicate.

—— Borin SIM,Cambodia

Gracias excelente productos y el envío muy rápido


Very technical and very welll organized and professional. Andrew has been a very helpful salesperson

—— gabriel haddad,Venezuela

Excelent product antennas and power.. its good, working very goog thanks ATNJ,

—— CARLOS GREGORIO,United States

Let’s be honest, the quality of my Vodafone mobile signal at home always left much to desire. I just was too lazy to do anything with it. I was absolutely satisfied with the rates and the quality of the signal that I had everywhere and my own house was an exception. However, the coronavirus pandemic changed everything. I started to spend much more

—— Ali , Spain

I bought this booster for my apartment because I was absolutely dissatisfied with the power of GSM and 4G signals that I had there. But now the situation has changed. Thank you for this booster, I finally don’t feel isolated when I stay at home alone.

—— Abdul Mohammed,Germany

I think that’s a very nice solution for those who suffer from problems with voice services and mobile internet and do not want to create any antennas or smth like that themselves. The price is absolutely fair and the quality is amazing.

—— Lena W.,Finland

I was very happy to see the discount that you offered. I know that quite often companies make discounts on goods that are not popular but in this case, I see that the situation is quite opposite. I like that this device is able to improve calls and the internet speed at the same time.

—— Giulia M.,Austria

Thank you! The booster is super cool for a private house. All the rooms are now covered with the improved signal. Now I can’t understand why we haven’t bought it earlier.

—— Nadine Nacht ,Germany

It’s a very cool booster! Thank you, dear team, for your attention to your clients’ needs and the prices that you offer. You are the best, ATNJ

—— Natalia L.,Norway

My 3G and GSM connection used to leave much to desire. But with m new booster I have practically forgotten all these problems. I really like that this device is so compact but so powerful. Thanks, guys, for your amazing work and fast delivery.

—— Goran N. ,Sweden

I can’t understand why I bought this repeater only 2 months ago and not earlier. That’s a very useful device for those who live in a rural area like my family. The improved quality of connection has significantly improved the quality of our life.

—— Lars M. ,United States

I'm Online Chat Now

Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier
Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier
Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

Large Image :  Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

Product Details:
Place of Origin: China
Brand Name: ATNJ
Certification: CE,ROHS,CCC,TUV,BV, ISO
Model Number: JS-DB900/1800/2100/CAR
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD+320---340+kit
Packaging Details: Standard neutral packing,52x24x16cm(1 kit), 4kits as 1 carton(54x49x33cm)
Delivery Time: 1-3 work days
Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.
Supply Ability: 1000+unit+per day.

Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

900MHz Frequency Range: 890-915MHz / 935-960MHz 1800MHz Frequency Range: 1710-1785MHz /1805-1880MHz
2100MHz: 1920-1980MHz/ 2110-2170MHz Device Gain: 50---55dB
Max Output Power: Uplink--17dBm, Downlink--2dBm Antenna For Donor: Penhold Antenna
Antenna For Receiving: Car Use Magnetic Antenna Weight: 4kg
Products Type: Amplificdor De Seal De Celular, Mobile Single Booster Cell Phone Signal

                     Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier

ATNJ Mobile Signal Repeater.pdf


Model Number
4G signal booster
Place of Origin
Brand Name
4g, GSM, 3G
Product name
Cellular amplifier
880-915MHz/925-960MHz,1710-1785MHz /1805-1880MHz,1920-1980MHz/2110-2170MHz
Output Power
Uplink--17dBm, Downlink--2dBm
3 Years
Indoor Signal Amplifier

Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier 0


Selling Point

1, Intelligent to guide the installation with LCD.
2, Real time display the signal strength.
3, Automatic dormancy when no user make the calling.
4, Automatic alarm when installation mistake and provide the according solution.
5, Automatic adjust the system gain to avoid the repeater self-excitation.
6, initiative reminding when the device was damaged.
Vehicle Car use tri band repeater 4g cell phone signal booster signal amplifier 1

JS-DB900/1800/2100/CAR Overview

ATNJ JS-DB900/1800/2100/CAR for camper vans is an excellent tri-band GSM, 3G, and 4G/LTE mobile signal booster that stands out from the row of similar devices for its powerful Yagi antenna which makes it a good solution for camping lovers.



Coverage area

The JS-DB900/1800/2100/CAR signal repeater for camping has an extended coverage area thanks to the fact that its set is enriched with a more powerful antenna than devices intended for traditional cars. It is very convenient that not only devices placed inside the ban can get the improved signal but also even those ones that are located nearby.



ATNJ JS-DB900/1800/2100/CAR for camper vans is able to work with signals transmitted by a huge number of operators in Europe and other regions. The main condition for a signal to be strengthened by this booster is to be transmitted at one of the supported frequency bands. This repeater is designed to be compatible with 900MHz, 2100MHz, and 1800MHz frequencies.


It means that even during your trips when you can be located far away from the nearest cell tower, you can expect to get excellent GSM, 3G, and 4G connection and, as a result, enjoy stable mobile internet and high-quality voice services.




Benefits and features

JS-DB900/1800/2100/CAR booster for camping has a number of advantages that increase its popularity among our clients.

  • The booster has an LCD screen which demonstrates a lot of useful information about the device and the signal power. Moreover, during the installation, you can use the tips that will be shown on the screen.
  • This model has a very powerful antenna which makes it appropriate for camper vans.
  • The repeater supports multiple connections. All mobile devices that are placed within the coverage area can get the improved signal at the same time.
  • This booster is very convenient to use. You just need to install it. All the rest will be done automatically.



Kit contents and setup

  It is very easy to install this booster for camping. If you order this model on our website, you won’t have any necessity to think about buying any additional elements s everything that you will need, will be included in a standard kit. The key elements of the set are a booster box, an in-car antenna, and a powerful out-of-car antenna. While the first antenna will spread the improved signal, the second one has an even more responsible role as it is intended for catching the signal transmitted by mobile operators. The standard kit also has all the necessary cables and mountings. The device works from a cigar lighter.

  It’s also important to note that together with this set, you will also get a User’s Manual with a step-by-step installation. guide.


Operating rules

  ATNJ JS-DB900/1800/2100/CAR for camper vans is a compact device that can be easily installed in any vehicle, even if you have never seen any devices of this kind before. Our engineers have developed a repeater that is absolutely safe to install and use. Just follow the installation tips and enjoy the improved connection.

Please note that this booster is intended for camper vans, if you are looking for a device for a car of another type, check this model JS-DB900/1800/2100/CAR. There is a good option for you.

  If you want to ask any questions, do not hesitate to contact our team. We will share all the necessary information about boosters themselves, placing an order, installing the device, etc. Our experts will be happy to help you.




Safety & Certification

Every ATNJ signal booster is confirmed to be 100% safe for its users, mobile devices and the environment. The absolute safety of devices is proven by the international safety certifications CE and RoHS. Read more about certification of ATNJ equipment here.




Q1:Do you have CE or any other certification?
A:Yes,we CE, , ROHS and ISO certification,etc.
Q2:Can you give me a discount?
A:Please discuss with our sales.
Q3:How about gain and output power of your device?
A:Different models, gain and output power aredifferent,for more details, please contact us.
Q4:How long is warranty period?
A:The warranty is 12 months. And we offer 7*24technical support
Q5:how many square meters can be covered?
A:For different models, the covered square meters are different.

Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Sales Manager

Tel: +8618813582037

Send your inquiry directly to us (0 / 3000)