ROHS,ISO 800,900,1800,1900,900/1800,2000,1800/1900,1900/2000MHZ dual/vertical/horizontal/circular 15years' manufacturer AntennaIndoor omnidirectional ceiling antenna YX800-2500INC-3Nall kinds of Base station/microwave/UHF antennasCertificate:ROHS,ISOFrequency:800,900,800/900,1800,1900,900/1800,2000,1800/1900,1900/2000Type:RF, ceiling,wall, log periodic,tri-sector, array, directional, Yagi, ...