The most powerful solutions. Period. While many manufacturers focus on multi-carrier solutions, CEL-FI focuses on single-carrier solutions for home and scalable multi-carrier solutions for Enterprise that offer the highest gain at 100 dB and up to 1000x the power. With their CEL-FI WAVE app for remote monitoring and management, the company provides the most modern and elegant experience for consumers.
Compact and Easy to Install Requiring Minimal Technical Expertise
The Nextivity CEL-FI GO G41 is the most powerful consumer signal booster on the market. Boosting a single carrier at a time by a staggering maximum of +100 dB of gain. It can cover a maximum of 20,000 sq ft in strong signal conditions.
If you’re rural, isolated, or have a metal building, the GO G41 will make the most of whatever signal exists, no matter how weak it seems. The CEL-FI GO G41 is available with numerous kitting options to give you the absolute best chance of getting reliable signal, no matter where you are.
The Carrier Solution for Retail and Branch Locations
The Nextivity GO G43 is a multi-carrier building signal booster designed for small to mid-size businesses. It improves 5G, 4G, and LTE cellular signal in an up to 20,000 sq ft area with a maximum gain of +100 dB, the highest on the market.
Remote monitoring, software updates, and uptime tracking is available via the CEL-FI WAVE Portal app, allowing you to always know how your signal booster is performing and to keep up with the latest technologies.
If you have mission critical need for cellular in your small to mid-size building, but have trouble getting it reliably, the CEL-FI GO G43 is your absolute best bet to solve those issues.
The Ultimate Multi-Carrier Commercial Cellular Solution
The CEL-FI QUATRA 4000c is a scalable, multi-carrier cellular system that is pre-approved by all American carriers for in-building installations of 500,000 sq ft or more. A single system is comprised of a Network Unit (NU) and up to 6 Coverage Units (CU) that can cover up to 90,000 sq ft each. It provides a massive +100 dB gain, which is up to 1000x more powerful than a typical wideband booster. Finally, the units are are connected via power-over-ethernet for exceptionally intuitive and inexpensive cable runs.
Remote monitoring is handled by the robust CEL-FI WAVE software, using the WAVE Portal as its desktop component with the portable WAVE App allowing you to check the status of your system at any time. The QUATRA 4000c can generate a CBRS Private Wireless Network, manageable via HARMONY service.
To maximize a system like this, however, you should consider a free, 30-minute consultation about a professional floor plan analysis, design, and installation for your business. Our installation services team, the Bolton Install Pros, are the leading nationwide Nextivity CEL-FI installer experts.
Powerful hybrid cellular solution for up to two carrier networks
The CEL-FI QUATRA EVO is a scalable cellular system, providing complete 5G / 4G / LTE coverage for up to two carrier networks.
A single system is comprised of a Network Unit (NU) and up to 6 Coverage Units (CU) that can cover up to 90,000 sq ft each. As a scalable option, a single QUATRA EVO system can provide up to 300,000 sq ft of coverage. It provides a massive +100 dB gain - up to 1000x more powerful than a typical wideband booster. Finally, the units are are connected via power-over-ethernet for intuitive and inexpensive cable runs.
To maximize a system like this, however, you should consider a free, 30-minute consultation about a professional floor plan analysis, design, and installation for your business. There are multiple kitting options to fit any style, and SignalBoosters.com is here to ensure your business gets the coverage it needs.
The Ultimate Multi-Carrier Commercial Solution
The CEL-FI Quatra 4000 is a scalable, multi-carrier cellular system that is pre-approved by all American carriers for in-building installations of 500,000 sq ft or more. A single system is comprised of a Network Unit (NU) and up to 6 Coverage Units (CU) that can cover in excess of 90,000 sq ft. It provides a massive +100 dB gain, which is up to 1000x more powerful that a typical wideband booster. Finally, the units are are connected via power-over-ethernet for exceptionally intuitive and inexpensive cable runs.
Remote monitoring is handled by the robust CEL-FI WAVE software, using the WAVE Portal as its desktop component with the portable WAVE App allowing you to check the status of your system at any time.
In order to maximize a system like this, however, you should consider a free consultation about a professional floor plan analysis, design, and installation for your business. Learn more about our Nextivity CEL-FI installation process
The Premier Dual-Carrier Commercial Signal Booster
The CEL-FI QUATRA 2000 boosts two separate carriers up to 1000x more than your typical wideband booster. It’s a great option if you’re only interested in two carriers, or if you’re willing to install two separate systems to get total coverage. It supports up to four Coverage Units, with each coverage unit handling around 15,000 sq ft.
Remote monitoring is handled by the robust CEL-FI WAVE software, using the WAVE Portal as its desktop component and the portable WAVE App so you can check the status of your system at any time.
In order to maximize a system like this, however, you should consider a free consultation about a professional floor plan analysis, design, and installation for your business. There are multiple kitting options to fit any style, and SignalBoosters.com is here to ensure your business gets the coverage it needs.
Tremendous Single-Carrier Commercial Signal Booster
The best reason to buy a QUATRA 1000 is if you have a deal with a carrier to only use their service within your company. It’s also less expensive than the QUATRA 4000 and 2000, so it’s a very efficient solution.
Remote monitoring is handled by the robust CEL-FI WAVE software, using the WAVE Portal as its desktop component with the portable WAVE App allowing you to check the status of your system at any time.
In order to maximize a system like this, however, you should consider a free consultation about a professional floor plan analysis, design, and installation for your business. There are multiple kitting options to fit any style, and SignalBoosters.com is here to ensure your business gets the coverage it needs.
Revolutionary Public Safety BDA for Any Jurisdiction
The Nextivity CEL-FI GO G41 FN is the most powerful consumer FirstNet signal booster on the market. Boosting a single carrier at a time by a staggering maximum of +100 dB of gain. It can cover a maximum of 1900 m2 in strong signal conditions.
If you’re rural, isolated, or have a metal building, the GO G41 FN will make the most of whatever signal exists, no matter how weak it seems.
Revolutionary Public Safety BDA for Any Jurisdiction
The SHIELD EXTEND is Nextivity’s first entrance into the Public Safety sphere, and they’ve done so by leveraging the superb design and usability of the QUATRA 4000 and adapting it to the requirements of the space. This means more reliable cable runs using power over ethernet, a single Network Unit providing power to up to six Coverage Units (per system), and remote monitoring, all at a great value.
The SHIELD EXTEND has 56 Class A Channels, which can be shared between 700 or 800MHz. Its +100 dB of gain is significantly higher than its competition, and the system all but eliminates the near-far effect for crystal clear reception.
Finally, it comes with either a 12 or 24 hour battery backup, remote Emergency Power Off Switch, Remote Annunciator Panel, and is can be programmed remotely. If you’re concerned with your local fire codes, the SHIELD EXTEND will ensure your annual CoO (Certificate of Occupancy) inspection goes off without a hitch, every time.
FirstNet Solution
The CEL-FI GO Red unit is essentially a CEL-FI GO X optimized specifically for AT&T’s FirstNet Emergency Responder Radio frequencies. This means that it boosts the signal for emergency responders, so they can communicate within your building.
FirstNet is a new network being rolled out for Public Safety Communication Devices. This high-speed, nationwide wireless broadband network will have dedicated bands for public safety agencies and first responders. The CEL-FI GO Red targets these frequencies and raises them with up to 1000x more power than other boosters.
The SHIELD SOLO is Nextivity’s answer for smaller spaces in the Public Safety sphere. It’s a smaller version of the QUATRA RED, designed for small business or office spaces not needing oodles of coverage.
The SHIELD SOLO has 56 Class A Channels, which can be shared between 700 or 800MHz. Its +100 dB of gain is significantly higher than its competition, and the system all but eliminates the near-far effect for crystal clear reception.
The SHIELD SOLO Public Safety ERRCS is designed for small to midsize buildings. It is compatible with many accessories, including the RED Remote Annunciator (RA), and the RED Emergency Shutoff Switch. These provide even more customizability.
If you’re concerned with your local fire codes, the SHIELD SOLO will ensure your annual CoO (Certificate of Occupancy) inspection goes off without a hitch, every time.
The Nextivity QUATRA 1000 FN FirstNet Booster delivers cellular coverage in buildings for emergency communications from police, fire, and medical personnel.
FirstNet is a network for Public Safety Communication Devices. This high-speed, nationwide wireless broadband network will have dedicated bands for public safety agencies and first responders. Legacy equipment does not support FirstNet dedicated band.
The QUATRA 1000 FN amplifies FirstNet frequencies across Band 14 and AT&T Band 12 in large buildings, up to 200,000 sq ft with the appropriate NUs and CUs. If you require reliable FirstNet in your building, the Nextivity QUATRA 1000 FN provides.
The Nextivity Cel-Fi QUATRA EVO-FN Enterprise Cell Signal Booster is a high-performance, carrier-approved solution desTigned to enhance cellular coverage in large commercial and enterprise environments. The system features advanced self-optimizing technology, automatic gain control (AGC), and multi-operator support to prevent interference while maximizing signal strength. Its modular design allows for scalability, and FCC compliance ensures safe, legal operation—making it a reliable choice for businesses needing robust, uninterrupted cellular connectivity.
The Nextivity Cel-Fi GO G43 First Net Commercial Cell Phone Signal Boosters is a powerful, FCC-approved solution designed to enhance cellular connectivity in medium to large commercial spaces. This booster supports multiple carriers, including AT&T, T-Mobile, and Verizon, and works across all major frequency bands (700 MHz, 800 MHz, 1900 MHz, and AWS/PCS) to improve voice, text, and data performance. With a coverage area of up to 100,000 square feet, it’s ideal for offices, warehouses, and other large buildings.





