The Cel-Fi Duo is a fully wireless signal booster that dramatically improves indoor 3G/4G/LTE voice and data for T-Mobile. This system has no external cables or antennas - the Network Unit receives the signal from the mobile network and relays it to the Coverage Unit to amplify your signal. Ideal for residential environments.
The coverage area you can expect from any signal booster kit depends on the signal strength outside the building.
||Estimated coverage area
|Strong outdoor signal (5 bars)
||up to 6,000 sq. ft. coverage
|Medium outdoor signal (3-4 bars)
||up to 4,000 sq. ft. coverage
|Weak outdoor signal (1-2 bars)
||up to 2,000 sq. ft. coverage
Like almost all of our products, the Cel-Fi Duo For T-Mobile can be installed by anyone who feels comfortable doing simple home repairs and running cabling. If you’re not comfortable doing that kind of work, you might consider finding a local electronics installer or asking a friend.
Unlimited free technical support:
Anytime you purchase from RepeaterStore, you get unlimited free technical support from our signal experts. Whether it’s installing a kit or troubleshooting a problem, we’re here. In over 7 years of being in business we’ve helped over 20,000 customers insall kits and improve their signal.
Have a question now? Call us from 8am to 5pm PST: 1-800-761-3041.