... ~928MHz(customized as per countries or regions) Read/write distance: 12dBi horizontal level of the antenna (built-in) ,read range: 0 ... ,antenna,RFID tags and work environment. 445mmx445mmx55mm GW: 5.0KGS 12dBi horizontal level of antennaFEATURESl Self-intellectual property;l Support ISO18000 ... ,swimming pool management,etc. Integrated UHF Long range RFID reader( 12dbi antenna,max distance 12meter)