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Cel-Fi PRO EXA 3G/4G Smart Signal Booster for AT&T

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Item Number: 7525



This is a special-order item that requires additional lead time. Contact us before ordering if you need a more exact ETA.

The PRO EXA is the same as the PRO, but features an SMA/Female antenna connector for users who need to connect an external antenna (sold separately). If you will be using an external antenna, you will need an antenna and a cable terminated in SMA/Male to connect to the PRO.

Amplifier Features:

  • Coverage area*: up to 13,000 square feet
  • All-in-One Kit? YES
  • Compatibility:This amplifier supports 3G, 4G, LTE and VoLTE for AT&T only. It is NOT compatible or approved for use with ANY other carrier.

Key Features:

  • EXA model supports external antenna (SMA Female connector)
  • Cel-Fi doesn't require the installation of external antennas, bulky coaxial cables, handset registration, or a configuration setup by the user. In fact, Cel-Fi intelligently and automatically senses and adapts to its environment-including to changes made by your carrier, or to changes caused by nearby equipment like Wi-Fi, or other Cel-Fi devices.
  • Cel-Fi provides coverage up to 13,000 sq. ft., making it ideal for large homes and offices. Multiple Units of Cel-Fi can be deployed in large offices and will not interfere with coverage strength.
  • Cel-Fi is radically different from traditional repeaters, Cel-Fi is the only intelligent booster that's wireless-in/wireless-out. The Network Unit receives the signal from the mobile network (it requires as little as one bar of signal, or -104 dBm RSCP, and -120 dBm RSRP) and relays it wirelessly to the Coverage Unit that amplifies it for up to 100dB of gain.
  • pdf download the Cel-Fi PRO datasheet

*Many factors will influence the actual coverage area you will see from a repeater, including layout/floorplan, construction, and original un-amplified signal strength. Depending on your situation, you may see more or less coverage than the estimates listed here. It is not possible to guarantee coverage area.

celfi pro install

Installation notes:

  • There must be at least one bar of usuable signal at the window in which you install the Network Unit. 
  • If there is not one bar of signal at the window, you will need to use an external antenna (sold separately)

Features & Benefits:

  • Supports WCDMA/HSPA+/LTE(FDD).
  • Up to 100dB of system gain in each band, simultaneously.
  • Wirelessly (5GHzU-NII) linked Network and Coverage Units.
  • Peaceful coexistence with adjacent Wi-Fi (2.4GHz & 5GHz) and femtocell devices.
  • Software-based optimization of integrated antenna coverage pattern which maximizes system gain and provides improved coverage.
  • Automatic Gain Control based on real-time echo-cancellation.
  • Adaptive signal equalization.
  • Nextivity's 3rd-generation (ARES) chipset with 6 core processor
  • Up to four (4) cellular bands supported. Cel-Fi PRO boosts service in the U.S. for AT&T only.
  • Support for E-UTRA bands 2 (1900), 4 (1700/2100), 5 (850) and 12/17 (700).
  • Support for 3GPP Rel.10 features.
  • Seamless integration with the Macro networks. No handset registration, GPS signal requirements, or call handoff problems.
  • Secure and ciphered provisioning.
  • Max EIRP; 10dBm downlink & 24dBm uplink, per band.
  • Network-Safe software prevents uplink system gain from exceeding path loss and eliminates unnecessary rise in base station noise level.
  • Uplink Muting Mode automatically shuts down uplink cellular transmissions when no active user equipment is detected.
  • System shuts down upon Operator’s network command or failure detection.
  • Users can be assured communications are secure, through the encrypted wireless link.
  • Registration, Software Updates and Tech Mode support with the Wave mobile app allowing installer to easily collect network information.
  • Enables the system to communicate with smart phones and the Cel-Fi Wave mobile app for improved functionality.
  • Cel-Fi remains fully functional, even when there are other RF emitters present.
  • Subscriber devices enjoy significant improvements in battery life.

Package Includes:

  • Network Unit
  • Coverage Unit
  • 2 Power Supplies
  • 2 Mounting Brackets
  • Quick Start Guide


  • RF Specifications:
    • 1st channel: B12
      • Frequency: 729-746 & 699-716
    • 2nd channel: B4
      • Frequency: 2110-2155 & 1710-1755
    • 3rd channel: B5
      • Frequency: 869-894 & 824-849
    • 4th channel: B2
      • Frequency: 1930-1990 & 1850-1910
  • Environmental:
    • Operating temperature: 0° to 40°C
    • Storage temperature:-25° to 60°C
    • Relative humidity: 5% to 95%, noncondensing
  • Power:
    • 12VDC via external supply (two included)
    • External Supply: 100 to 240 VAC, 47-63Hz
    • Power consumption less than 25W per unit
  • Physical Specification:
    • Network Unit: 179 x 155 x 110mm, Weight 19oz.
    • Coverage Unit: 160 x 164 x 79mm, Weight 16oz.
  • Certifications & Compliance:
    • CE
    • FCC Parts 15, 20, 22, 24, 27
    • RoHS (six of six) / WEEE (2002/96/EC)

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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All Reviews (2)

Only customers who bought this item from 5Gstore can write a review - these are all verified 5Gstore purchases

Date Added: 10/25/2018 by Jared W. (WESTLAKE, LA)
Works as described. Fast Delivery.

Date Added: 07/09/2017 by Nick S. (GHENT, NY)
I live in a rural, hilly area, and have long suffered from horrific cell reception. Now that AT&T provides truly unlimited LTE data plans, I thought we would explore it as an option again. Our outdoor signal reception at the best place on our land was at -114dB. Our house and area are not served by DSL, or any other kind of broadband other than satellite Internet, which provided speeds between 3Mbps and 24Mbps (when it worked) but latency at 1600ms to 1800ms. That's 1.6 SECONDS. My son has never been able to play a video game. The satellite services also capped the data usage at 30GB per month and cost $160 per month.

The Cel-Fi amp literature claimed to be able to amplify signal up to -120dB. With the help of the knowledgeable people at 5GStore, we settled upon the Cel-Fi PRO, a Wilson Wide-Band 3G/4G/LTE Yagi Antenna - 314411, and a Pepwave embedded GSM-WAN, WiFi Access Point. We located the nearest tower (4.5 miles away) and I used Google Maps satellite view to pinpoint the tower LAT/LON. We then calculated the angle required for mounting the Yagi on our house.

After installing the Yagi and plugging it all in but, because I was highly suspicious of whether this would work at all, letting the cables hang loose, we powered up the system. Pa-POW. Cellular service in our house for the first time in nine years. I popped open the YouTube app on my phone and watched a HD video. I went to (not perfect, but hey!) and I measured speeds between 3.2 Mbps and 5.3 Mbps, with latency between 45ms and 80ms. Sure, by contemporary standards that's slow as hell, but for our purposes - research, email, video and music streaming - it's more than adequate, it's damned good. The upload speeds, however, are a disaster - between 200Kbps and 900Kbps. Not so much with the Skyping. That is not a product of the Cel-Fi, but rather my service.

We then committed: we secured the cables on the side of the building, drilled through the exterior wall and passed the cable through, and locked the implementation down. I have a separate review of the Pepwave AP.

There was one glitch: one day, after two weeks, we suddenly lost voice comms but still had data. I called 5GStore, and Dario opened a ticket for me, liaising between myself and Cel-Fi. Within a few hours we were in direct communications, and they were helping me troubleshoot. They examined the system logs and determined that there was no 3G signal, which was confusing, because in my experience, if you get a system like this going and lock in the config, changing nothing, it shouldn't change. Cel-Fi's lovely Rose mentioned that I might check with AT&T. Sure enough, I learned something important: I have *no 3G service in my house, never did. All my service is LTE, and my voice service is AT&T Voice-over-LTE. And AT&T was having a massive outage in my area. Hours later, my voice service returned.

My advice: run LTE discovery (or similar) app and determine what services you have at what levels, so that you understand what might go down, and this will help you troubleshoot.

Our family is tremendously happy with what we have now.

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