... stack 4.850/900/1800/1900MHZ Product DescriptionRS232 GSM/GPRS/GPS Modem can be used forSMS Gateway Lift Monitoring Traffic ... 1800/1900MHZSIM Application ToolkitRS232 interface for GSM/GPRSRS232 interface for GPS(NMEA)RJ11 interface for phoneGSM antenna with 3-meter ... : AC/DC adaptor, 2 RS232 data cable, GSM antenna, GPS antenna, CDGSM/GPRS specifications:850/900/1800/1900MHzGPRS class 10GPRS ...