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Cel-Fi DUO Signal Booster for T-Mobile - 3G, 4G & 4G LTE

Cel-Fi DUO Signal Booster for T-Mobile - 3G, 4G & 4G LTE

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Quick Overview

2K to 6K sq ft i
All carriers i
T-Mobile i


Cel-Fi DUO Signal Booster for T-Mobile - 3G, 4G & 4G LTE

  • Minimize dead zones & reduce dropped calls.

  • Insanely Simple 3 Step installation. No cabling or configuring required.

  • Concurrent Daul Band boosting in bands 2 (1900MHz), 4 (1700/2100MHz).

  • The only consumer Cellular Signal Booster authorized for use on the T-Mobile Network.

  • Cel-Fi is the only consumer booster with up to 100dB of gain approved by the FCC, allowing one system to cover up to 13,000 sqft.

  • Cel-Fi DUO is built on Nextivity’s third-generation Cel-Fi Baseband Processor, which features built-in intelligence that enables the signal booster to automatically sense and adapt to HSPA and LTE network environments without interfering with operator networks and other devices Simultaneous Voice and Data on the 3G, 4G and 4G LTE network technologies.

  • 2 year limited manufactures

  • 30 day money back

All you need is 1 bar (more is always better) to get 5 bars from Cel-Fi.  Find one spot in your home/office where your mobile device receives at least 1 bar (-104 dBm RSCP 3G/4G and -120 dBm 4G LTE RSRP) of usable 3G, 4G or 4G LTE cellular signal. Place your Network Unit in this location, and then place the Coverage Unit where you need enhanced coverage the most, minimizing dead zones and dropped calls.


As Simple as 1, 2, 3!

Simple 3 step instillation.

1. Use your mobile device to find your best indoor signal.

2. Place the Network Unit in the location found with your cell phone and plug it in.

3. Place your Coverage Unit where you need coverage the most and plug it in.

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