... .Main feature:1:Adopt high grade industrial wireless module.2:Support 2G( GSM/GPRS/EDGE),3G(WCDMA/HSDPA/HSUPA/HSPA+) ... .Main feature:1:Adopt high grade industrial wireless module.2:Support 2G( GSM/GPRS/EDGE), 3G(WCDMA/HSDPA/HSUPA/HSPA ... Oil industry, Mineral, Finance, Communication, Public security, Heating, Industrial control, Meteorology, Water conservancy, Public transportation, local council and so ...