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SureCall EZ 4G Signal Booster Kit

SureCall  |  SKU: SC-PolyEZ-DT-72-Kit |

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The SureCall EZ 4G Signal Booster Kit is designed to be very easy to install and look great when installed in your home or office. The booster uses a window mount unit, that can be either mounted directly to the window or sit in the window on a sill, and a small desktop antenna connected by a coax cable for boosting signal. Setup takes only a few minutes and the unit automatically adjusts itself for maximum performance.

Please Note: For maximum performance, you should have 30+ ft of separation between the window unit and the inside antenna.

Why the SureCall EZ 4G?

  • Easy plug and play setup. No outside antenna required.
  • Works wirelessly. No physical connection to your phone required.
  • Supports multiple phones and all carriers at the same time.
  • Everything you need is included in the kit. Get setup in minutes.
  • Fewer dropped calls
  • Faster Internet data speeds
  • Better voice quality
  • Texts that send quickly
  • Longer battery life

Your purchase is covered by our 60-day money-back guarantee, so you can try it risk-free, and our friendly, US-based technical support team is standing by to assist with anything you need. Your equipment is also covered by a 3-year manufacturer warranty, for extra peace of mind.

Recommended For

The SureCall EZ 4G signal booster kit is recommended for situations where you're not able to mount an antenna outside of the home or office that requires boosted signal, and only need to boost signal in a small area inside of the building, such as in a single room, or for very weak outside signals, a desk, table or other similarly sized area. If there is a strong signal in the location where you mount the window unit, the EZ 4G may be able to fill up to an entire room with boosted signal.

How it Works

The main unit of the SureCall EZ 4G is designed to be located in the window of the building that receives the best outside signal. It can either be affixed directly to the glass using the included adhesive or sit on the window sill using the included stand. The window unit will receive the outside cell signal, amplify it, and then pass it along the included cable to the inside desktop antenna, which should be located in the area of the building that needs boosted signal. The system will automatically analyze the signal environment, and adjust itself to provide maximum boosting power.

The entire process also works in reverse, so you get a strong and reliable connection back to your carrier.

Estimated Inside Coverage

The strength of your existing outside signal, measured in the location where you plan to mount the outside antenna, has a direct impact on the amount of inside coverage you'll get from a signal booster. The table below shows how much coverage you may get depending on your outside signal strength:

Existing Outside Signal Strength Estimated Inside Coverage
Strong (5 Bars) Up to 1,200 sq ft
Medium (3-4 Bars) Up to 750 sq ft
Weak (1-2 Bars) Up to 100 sq ft
None (0 Bars) No Coverage

Please Note: It is important to remember that there are many factors that impact the size of the inside coverage area, so actual results may vary from these estimates.

Additional Coverage

If you need more coverage than one system will provide due to a weak outside signal, you can install multiple SureCall EZ 4G systems in your home or business. Please contact us for assistance with mapping out the ideal location for each system.

If you need more coverage than the SureCall EZ 4G will provide, and you're able to figure out a way to mount an antenna outside on the roof, then the SureCall Flare is going to be a better choice for you. It has a more powerful amplifier and an external antenna to provide more inside coverage with the same strength outdoor signal. Please contact us if you have any questions or would like more information about this system.

Will this Work for my Phone and Carrier?

The SureCall EZ 4G has been designed to work with all cell phones and all carriers in the United States, Canada, and Mexico, as well as carriers from some other countries in Latin America, South America, and Australia.

Supported Phones All Cell Phones, Hotspots, and any Devices that use Cellular Data
Networks 2G, 3G, 4G LTE & 5G
Frequencies 700, 800, 1900, 1700/2100 MHz
Carriers Works for all Carriers in North America, including: AT&T, Verizon, Sprint, T-Mobile, US Cellular, Bell, Telus, Rogers, Freedom Mobile

Please Note: This signal booster will not work in most European, Asian, and African countries, as the frequencies used there are different than those boosted by this equipment.

In the Box

  • SureCall EZ 4G Window Unit
  • SureCall EZ 4G Power Supply
  • 50 ft of RG6 Cable
  • SureCall EZ 4G Desktop Antenna


  • Warranty Length
    3 Years

Regulatory Advisories

This is a CONSUMER device.
BEFORE USE, you MUST REGISTER THIS DEVICE with your wireless provider and have your provider's consent. Most wireless providers consent to the use of signal boosters. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider. You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from any person. You MUST cease operating this device immediately if requested by the FCC or a licensed wireless service provider. WARNING. E911 location information may not be provided or may be inaccurate for calls served by using this device.

Please note, the four largest carriers - AT&T, T-Mobile, Verizon and Sprint - and more than 90 regional carriers have given blanket consent for use of all boosters certified to the new FCC standards.

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SureCall EZ 4G Signal Booster Kit

SureCall EZ 4G Signal Booster Kit


What You Should Know


Uplink Frequency Ranges (MHz)


Downlink Frequency Ranges (MHz)


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Plenum Rating


RF Connectors


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Power Supply


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Includes Connectors


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Outside Antenna Options


Inside Antenna Options


Number of Inside Antennas

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