1. The Modem based on mc39i (900/1800mhz) without tcp/ip stack  Industrial design. Aluminum casing. Wireless access to internet. Comply with etsi gsm phase

 2. 3v sim card slot. Standard rs232 interface. Sim application toolkit. Double tone multi-frequency function (dtmf). Send and receive data, fax, e-mail, sms. Fax group

3, class 1,2. Maximum transmitting speed 115kb/s. Gprs class 10. Antenna with high sensitivity. Always on-line. Output power. Class 42w @ 900mhz. Class 11w @ 1800mhz. Input voltage6v-36v dc. Input current1a-2a. Standby current: 56ma. Working current: 100-140ma. Working temperature -20 -+55. Storage temperature:-25 -+70. Size98*54*25mm. Weight130g. Accessories: ac/dc adaptor, rs232 cable, antenna, 2 mounting plates, cd.

RS232 GSM /GPRS modem with siemens MC39I module