SURECALL's SC-PolyO2-72-Y4U Force5 2.0 cellphone signal booster kit, with Sentry remote monitoring built-in, increases cellular coverage for areas 25,000+ sq-ft for all carriers' voice, text, and 4G LTE data signals. Kit includes 30 ft and five (5) 75 ft lengths of SureCall 400 low loss coaxial cable, four-way splitter, outdoor Yagi antenna, and four (4) indoor ultra thin dome antennas.