At recent years, 2.5 Generation mobile network (GPRS and CDMA 1x) has been widely used in many countries, it provides a wide range and reliable mobile data channel for business and industrial applications, especially in M2M field. Beijing Garefowl New-tech Co., Ltd. has developed an amazing and easy using GF-2008W/N GPRS DTU for those applications.
GF-2008W GPRS I...
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