... Long range module RF Power: 5W, DC12V Meter Reading, wirelss system 433Mhz RF Module, 8-12Km Wireless Data Transceiver, Long range ... smart terminal: POS, PDA, PTZ; * RS-485 wire multi-drop system changeover wireless system; 3. Specifications * RF power: ≤5W /37dBm; * Receiving current: <30mA ...