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SureCall Flare 3G, 4G LTE 5GE Cell Booster for up to 2500 sq. ft.

SureCall Flare 3G, 4G LTE 5GE Cell Booster for up to 2500 sq. ft.

  • Regular price $399.99 USD Sale price$299.99 USD
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Free Lifetime Support. SKU / Model: SC-Poly-DT-O-Kit

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SureCall Flare Home Cell Phone Signal Booster:

  • Simplified setup with combined booster and indoor antenna. Only external antenna to be placed/ installed outside.
  • Another version of this kit is available with Yagi exterior antenna for extremely weak outside signal areas.
  • Another similar, but different model is also avail. with more antenna configurations to cover larger areas up to 4000 sq. ft.
  • Boosts voice, text, 3G, 4G LTE, 5G-E signals of all wireless providers in USA. For Canada, choose Canadian home cell signal booster version.
  • Reduces dropped or missed calls and improves data speeds.
  • Covers 1-3 rooms of a home or small office, up to 2,500 sq. ft.
  • Captures signal from cell towers of all carriers in all directions.
  • Supports up to 8 multiple cell devices simultaneously.

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Need installation quote, or help with designing a custom solution? Submit a request for quote.

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Product Description

SureCall Flare 3G, 4G LTE, 5G-E cell phone signal booster/ repeater/ amplifier kit increases cellular coverage up to 2,500 sq. ft. in homes, apartments, office buildings and any indoor space. Although one of the cheapest in cost, Sure Call Flare is a universal cell phone booster boosting reception for ALL carriers voice, text, 3G, 4G LTE, 5Ge data signals. These include USA service providers Verizon Wireless, AT&T, T-Mobile, and Sprint.

Most Powerful Cell Phone Signal Booster with Simplified Install for Small Homes.

Coverage Area: 1-2 Rooms / Up to 2,500 sq. ft.

Estimated Coverage Based On Outside Signal Strength:

  • 1-2 Bars = 1,000 sq. ft.
  • 3-4 Bars = 1,500 sq. ft.
  • 5 Bars = 2,500 sq. ft.


  • Simplest set up - no aiming outside antenna, combined booster with antenna for 360 coverage.
  • Features exclusive 2XP technology that provides twice the signal power to the tower when compared to the closest competitor to keep all devices connected in suburban areas.


Get better cell signals for all US cell carriers inside any home, cabin, small building or office up to 2,500 square feet. It features 2XP technology which doubles uplink transmission power to connect homes and small buildings with reliable call, text, and 4G LTE data coverage in suburban areas.

It is trusted by thousands of customers across USA for its huge boosting power in a compact, streamlined package. This multiple award-winning signal booster features an external omni-directional antenna and a booster with an omni antenna all in one attractive housing that allows it to provide more coverage than other traditional booster designs.

  1. Significantly boosts all North American carriers' signals including AT&T, Verizon, Sprint, and T-Mobile to reduce missed and dropped calls plus increase 4G LTE data speeds.
  2. Compatible with all cellular devices, including hotspots, while extending their battery life.
  3. 5G Phone Compatible - Boosts voice and 4G LTE data signals on 5G phones and devices.
  4. Simple DIY setup with option for local installation assistance.
  5. Supports multiple simultaneous users.
  6. Built with the highest quality materials for longevity and connectivity when you need it most.
  7. FCC-approved booster system with one-time install & no recurring fees.
  8. Includes 24/7 lifetime US-based tech support, 60-day money-back guarantee and 3-year manufacturer's warranty.

Costwise, it is very cheap. It works great if you have medium to strong signal outside the house, or office building. The kit includes Flare booster with interior built-in Omni antenna, exterior Omni antenna, 50 ft. of RG6 cable and power supply. It works just the same for all cell phone brands like Apple iPhone, Samsung, LG, HTC, OnePlus, ZTE, Motorola (Moto), Google Pixel XL/ Nexus, Kyocera, Blackberry, Microsoft Lumia, and Nokia. It is a great home improvement accessory which may help increase the resale value of your property.


  1. Boosts Voice, Text and 4G LTE Signals for all American cell carriers including AT&T, Verizon, Sprint, T-Mobile in USA.
  2. Reduces Dropped & Missed Calls and Improves 4G LTE Data Speeds.
  3. Covers 1-2 Rooms of a Home or Small Office, up to 2500 Sq. Ft.
  4. Patent granted design - Integrated booster and internal antenna for superior performance.
  5. Supports Up to 8 Simultaneous Users.

Home/ Office Signal Amplifier Kit with UPC 858507006403. SKU SC-Poly-DT-O-Kit (USA English Instructions) features:

  • Simplified Setup with Combined Booster and Indoor Antenna.
  • Boosts Voice, Text and 4G LTE Signals for All US American Cell Carriers.
  • Omni-Directional Outdoor Antenna Captures Signal from All Directions.

Simplified Indoor Setup:

Flare is the first cell phone signal booster with a combined indoor antenna and signal booster, simplifying setup and increasing signal strength for multiple simultaneous users on all U.S. American cell carriers, including AT&T, Verizon, T-Mobile and Sprint.

Flare's revolutionary design features a built-in indoor omni-directional antenna that increases signal strength for voice, text and 5G E, 4G LTE data in 1-2 rooms of a home or office, up to 2,500 sq ft. The attractive one-piece base unit is designed to be placed on an open tabletop or shelf for clearer and more reliable voice and data performance in any room.

How it works:

Signal is delivered to the Flare booster with the included omni-directional outdoor antenna and 50 feet of low-loss RG-6 cable. The outdoor antenna captures signal from the cell tower and then SureCall’s award-winning, patented all-carrier booster amplifies it and re-broadcasts the enhanced signal coverage to all mobile devices within range.

Kit Includes Following:

Flare indoor booster, omni-directional outdoor antenna (SC-289W), 50 feet of RG-6 coax cable and power supply.

Product Specifications:

Uplink Frequency Range (MHz): 698-716 / 776-787 / 824-849 / 1850-1915 / 1710-1755

Downlink Frequency Range (MHz): 728-746 / 746-757 / 869-894 / 1930-1995 / 2110-2155

Donor/Server Port Impedance: 75 Ohm / 50 Ohm

Maximum Gain: 72 dB

Noise Figure: 7 dB

VSWR: ≤2.0

Supported Standards: CDMA, WCDMA, GSM, EDGE, HSPA+, EVDO 4G LTE and all cellular standards

AC Input: Input: AC 110 – 240 V, 60 Hz ; Output: DC 5V / 3A

Maximum Output Power: 1 Watt EIRP

Cable: RG-6 (50 feet)

RF Connector: F-Female

Power Consumption: <12W

Weight: 1.81 lb

Dimensions: 5.125" × 7.25" × 5.625".

Available Accessories.

Although the SureCall Flare Signal Booster Kit includes all the components required to install the system, the following accessories may make the installation easier and help protect the system in the future:

  • J-Bar Pole Mount For Outdoor Antennas: Adjustable 20" J-bar outdoor antenna mounting pole is a universal mounting pipe that allows you to position your exterior antenna higher for optimal reception. The bracket attaches to any flat surface including a roof, fascia, side of house, or deck rail (SC-MOUNT-JBAR).
  • Lightning Surge Protector (75 Ohm) for SC-RG6 and SC-RG11 coaxial cables: In-Line Surge Arrestor With F-Female and F-Male connectors for SC-RG6 and SC-RG11 coaxial cables protects signal booster from damaging electrical surges (SC-LP-75). Or choose aftermarket 75 Ohm surge protector.
  • Grounding kit helps ground the surge protector to disperse lightning surge.
  • Need longer cable run? Get 50 Feet Premium Low-Loss 75 Ohm RG-11 coaxial cable with F-Male connectors (SC-RG11-50).*
  • Need even longer cable run? 100 Feet Premium Low-Loss 75 Ohm RG-11 coaxial cable with F-Male connectors (SC-RG11-100).*

*Upgrading from included RG-6 cables to lower loss RG-11 cables may be helpful because longer the cable, higher the signal loss. For every 100 feet, the signal loss is approx. -4dB on low frequencies and approx. -6dB on high frequencies. Therefore, it is best to use shortest runs possible. If using longer runs, outside signal strength should be good to support the Gain loss. Please contact us if you need assiatamce regarding your situation.

Video demonstrating how to install Flare Cell Signal Booster:


Not Working Properly? Watch Easy Troubleshooting Video Guide.

If your Flare signal booster is not boosting reception as it should, checkout this easy to understand video guide that explains what various color LED indicator lights mean, and how to address issues that may arise.


This 2G, 3G, 4G LTE cellular signal booster kit is compatible with following U.S.A. service providers:

American Service Providers
AT&T Wireless
Boost Mobile
C Spire
Cricket Wireless
Metro PCS
Simple Mobile
Straight Talk
T-Mobile USA
US Cellular
Verizon Wireless
Virgin Mobile USA


SureCall Flare Bands and Frequencies.
  BAND 13 700 MHz
  BAND 5 850 MHz
  BAND 4 1700/2100 MHz
  BAND 25/2 1900 MHz


Alternate part #'s (USA):

  • SC-Poly-DT-O-Kit
  • SCPolyDTOKit
  • Poly-DT-O-Kit
  • PolyDTOKit
  • SC-Poly-DT-O
  • SCPolyDTO
  • Poly-DT-O
  • Poly-DTO
  • PolyDTO
  • Flare-U
  • FlareU
  • Flare-USA
  • FlareUSA
Consumer Alert


Customer Reviews

Questions & Answers


Ask a Question
  • Will this work in canada?

    Yes, it will work in Canada for all carriers such as Rogers, Telus, Bell and their MVNOs or subsidiaries such as Fido, Koodo, and Virgin Mobile.

  • how do i find which direction to point the out door antenna.

    Since exterior antenna is omnidirectional, it does not have to be pointed towards any particular direction. It does have to be installed vertically so it can absorb signals from 360 degress (all directions).

  • Will this work in Ecuador?

    Yes, this cell phone signal booster will work in Ecuador. It is compatible with Claro's 850 Mhz spectrum and possibly Movistar's 2100 MHz 3G or CNT Mobile's 1700 MHz 4G LTE. However, it not work in UK.

  • I have identified this home signal booster unit model # SC-Poly-DT-O-Kit that I would like to buy. However, I would like to protect the system from lightning strikes that have been occurring in my area quite frequently (can global warming cause this?). Anyway, I just want to know the model number of the lighting surge arrestor to purchase for that system. It looks like I have an N connector on one side of the cabling with this kit and a F style connection on the other side. So I would need a lightning arrester that has one of each connector, I think.

    The 75 Ohm lightning surge protector part model number SC-LP-75 is for this SureCall Flare kit. Its male side should be connected to the roof antenna and the female side should be connected to the coaxial cable that goes into home or building.


    Yes, this cell phone signal booster covers all bands and boosts mobile reception of all wireless networks of all service providers in USA & Canada, including Consumer Cellular network in that zip code.

  • This system work with Videotron?

    Yes, absolutely - This wireless signal booster kit will work with Videotron network in Canada. The Vidéotron Mobile network uses Advanced Wireless Services (AWS) spectrum using LTE on the 1700 MHz and 2100 MHz frequencies which are covered by this mobile signal booster system.

  • Will this work for Freedom wireless bands in Canada?

    Yes, this mobile signal amplifier kit will work with Freedom Mobile network which covers 700 MHz to 2500 MHz frequencies. In fact, it works with all carrier networks in USA and Canada.

  • How long does it take to install this in a typical home?

    It takes only 15 minutes maximum to install it.

  • Will this work for a parked Rv? Campgrounds I stay at, have poor signal reception. I use my phone for tv entertainment. Watch old movies and tv shows. Or can you advise on what best to use? Thank you.

    Yes, this can be suitable if used when recreational vehicle is parked. It is not allowed for use when it is in motion because it exceeds maximum threshold of Gain allowed by FCC on moving vehicles (which is up to +50dB Gain whereas this offers up to +72dB Gain).

    Therefore, you will need to dismantle everytime you're ready to move your RV. That is why a more convenient one would be the cell signal booster designed for RVs so you can permanently install it and you don't need to re-intall and remove, everytime it is needed and then not needed when ready to drive.

  • I currently have the SureCall Flare booster with the round antenna. I was told about the Yagi antenna SC-231W is supposed to deliver a much stronger signal vs. the Flare's Omni antenna. Are both antenna's interchangeable? Or would I have to purchase the complete package? In other words, could I simply purchase the Yagi antenna and connect it to my current setup?

    Yes, you can buy the SC-231W and switch out with your existing omni antenna.

    Please note that Yagi antenna is not more powerful per se - It simply has a narrow beam of transmission focus so it can reach out farther to catch cell signals from towers farther away.

    However, please note that it is very important to point that Yagi antenna towards your nearest relevant carrier's cell tower for it to help - or the reception will be worse than the Omni antenna provides!

    A signal meter may help in pointing it in the right direction.

    Just confirming you're aware that Omni antenna that you currently have with this kit is great if signal outside is medium to good because they catch signals from all carrier's cell towers, from all directions. Their installation is also easier because they are placed vertically, and don't have to be pointed in any particular direction except straight up. Simply place it at the best signal spot outside the house, and you're done.

    Please contact us for more details if you have any doubt about what you're planning to do. Thank you, kindly.

  • Does this signal booster improve T-Mobile 5G Band 71 frequency signals?

    Sorry, only SureCall Force8, Cel-Fi Quatra 4000i, and WilsonPro 710i cover that particular frequency.

  • If you have a cell phone provider that uses Verizon wireless towers, will the signal booster work for it?

    Yes, it definitely will. This is Carrier agnostic signal booster which means it works for all cellular carrier networks in USA. Therefore it boosts indoor cell phone coverage regardless whether your service is through a major Carrier like Verizon Wireless, or a smaller service provider such as any of its Mobile Virtual Network Provider (MVNO) listed below: (just a small list, not all Verizon MVNOs are listed below)

    1. CREDO Mobile.
    2. GreatCall.
    3. Net10.
    4. Pix Wireless.
    5. Page Plus.
    6. Red Pocket.
    7. Straight Talk.
    8. Total Wireless.
    9. TracFone.
    10. Twigby.
    11. US Mobile.
    12. Visible.

  • Will this work for a Samsung Galaxy tab A tablet. That's on a Verizon service account?

    Yes, this can improve reception that a Samsung Galaxy Tab A tablet on Verizon network can get. In fact, it can improve reception of all cell phones and tablets on all USA carrier networks because it improves cellular reception, period - Regardless of which service provider or type of SIM card connected mobile device you have.

  • Will this work with an AT&T hotspot?

    Yes, this can improve reception that an AT&T hotspot can get and therefore the hotspot can transmit that signal to all connected devices.

  • Does this cover all Sprint bands

    Yes, it boosts signal of all Sprint bands except Sprint's Band 41 (WiMAX).

  • Do the boosters work with Xfinity moblile?

    Yes, they do. We also offer 60 days refund guarantee if you're not satisfied for any reason. Thank you.

  • Will this work in the following zip code 53962?

    As long as there's some signal outside, it will work in all zip codes of United States. It is not limited to working in specific zipcodes nor limited to any specific Carrier - works on all service provider networks.

  • I live on a boat. If I mount this on the forward deck and run the flat cable say around the windshield to the interior, will this work ok?

    The Flare signal booster on a boat is not recommended for several reasons. First, you may run into separation issues because you may not be able to place exterior and interior antennas far enough. Second, the FCC does not allow these type of in-home boosters for any moving vehicles which can only have max 50dB gain. Therefore, your boat will have to be docked and not move for you to be able to use the Flare cell booster. In-home/building boosters like Flare offer much higher Gain than allowed by FCC for use in moving vehicles such as boats. Therefore, we recommend the following booster designed for marine vessels instead:

  • How well does the system work in a thunder/lightening storm?

    It works to improve reception indoors in any weather but indoor coverage will be mitigated if outside signals are negatively affected due to bad weather.

  • Will this work if the antenna is installed inside the attic of a wood frame house?

    Please clarify your question: Do you mean installing omni antenna and/or the coverage unit inside the attic of a wood framed house? Placing coverage unit in attic won't work as good, but may help slightly. Placing omni exterior antenna will work great if the strength and quality quality of cellular signal currently in attic without booster is good because amplification of signal by this 2 in 1 booster and coverage unit will be based upon that.

  • Do you have to drill a hole in your exterior wall so that you can connect the antenna outside to the booster inside, I assume?

    Yes, you could drill a hole to run the cable into the house, and there are other options: For example, you can buy a flat coaxial cable and run it underneath a window instead.  Or if you have a satellite TV installed, you may be able to follow their cable and run your exterior antenna cable alongside their cable to run it inside the house.  Or you can run it underneath the flashing next to a vent pipe through the roof. Or you can make a small cable connector width hole in the Soffit, the underside of the home structure such as an arch, a balcony, or overhanging eave. Or if there's a vent on the side of the roof, you can run it through that. You will need to make a tiny hole in the mosquito net which is usually there at such exterior building vents. After running cable through any of the methods, remember to seal any openings, if any, with a silicone or similar sealant so no water or insects can get through.

  • Why must the carrier be notified?

    Just to clarify, when we say carrier must be notified, it does not mean that you literally need to call the carrier to tell them you're going to use a signal booster. It is much easier than that because you merely submit a booster registration online form at their website providing your cell phone number and address where it will be used.

    To precisely answer your question, providing such information can help your carrier contact you to request you to turn it off in a rare event it does not work properly and begins to damage their wireless network.

    Such occurrences are rare because all our USA signal boosters are FCC certified and Canadian signal boosters are IC / ISED approved. Such approvals or certifications ensure that they work properly without damaging the cellular networks for the most part unless they have a manufacturers defect or they have got damaged due to severe impact or have come in contact with water causing water damage.

    However, unlike the past when such regulations we not in place, there're hardly any such instances now. In the past, such instances were more frequent because some signal boosters would not power down or reduce amplification when oscillation was detected causing runaway oscillation causing damage to cell phone towers and network owned by carriers. 

    That is the reason why mobile carriers collaborated with cell phone signal booster manufacturers and federal regulators to require certification and approval process to ensure signal boosters worked properly in proper manner to prevent damage to the network. Within those regulations, it also required cell subscribers that used them to notify their respective carrier to ensure that if and when that carrier detected a runaway oscillation occurrence, they can contact that signal booster user to request them to power it off and have it fixed or replaced to mitigate damage to the wireless network or stop interference that may otherwise prevent other cell phone subscribers using same cell tower from using their cellular service.

  • How far can this boost signals? 20+ km?

    The SureCall Flare signal booster can cover an average of 1 to 2 rooms. If you're talking about how far can you receive a signal, it is "theoretically" around 30 miles.

    Realistically though, if you're talking about how far the booster can transmit back to the tower, it could do 20+ km if you're using a Yagi antenna for outside (here's the same kit with Yagi:, and there are few obstructions along line of sight. 

    However, please note that you still need a decent amount of strength such as below -100 dBm (readings from phone) at the spot where you would mount your exterior antenna for the signal booster to improve reception indoors.

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Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Please check outside signal level in decibels before ordering. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

If it is too weak, submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

Please note: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

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