Cel-Fi is similar to a cellular repeater. It is designed to eliminate in-building dead zones due to weak signal at the perimeter and greatly improves indoor mobile phone reception within up to a whopping 13,000 square feet! If you have a large establishment of up to 13,000 sq. ft., Cel-Fi is the way to go because other options do not compare considering the amazing signal extension and amazing ease of installation within such a large area.
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