... , SMS Printer mainly consists of shell, antenna, battery, AC adaptor, PCB and components, GSM module, thermal printer and firmware ... interface, easy operationTechnical indices1) Power supply2) AC input: 100V-240V AC3) Power adaptor output: DC 9V/3A4) Operation temperature: ... sensitivity: <-108dBm Transmit power: 1V SIM card interface: 3V Antenna: SMA connector8) Thermal PrinterPaper: Thermal paper roll, ...