General:

AT International Group Co., Limited is a leading factory in China, specializing in RS232, PCI, USB, PCMCIA & Express GSM/GPRS/CDMA industrial modems, 3G HSDPA/HSUPA/EDGE modems and modem cards, PCI&RJ45 USB GSM/GPRS/CDMA 8/16/32/64 port modem pools, wireless communication parts and various cables for digital electronic products (GSM/CDMA Alarm systems). Our devices are in compliance with RS-232 and USB interface standards and have direct connectivity with RTU PLC. Intelligent instruments and other types of industrial devices are connected to next-bit machines, using a transparent means of communication, so non-IP system equipment through the serial ports is easy to access CDMA /GPRS network and Internet.

Shenzhen Hutong Technology Co., Ltd., is a hi-tech factory engaged in telecommunication, information, consultation, hardware and software development, manufacture and sale of wireless communication products, and system integration and distribution of wireless communication equipments. We have patented technology and our own know-how. We can provide our customers with system solutions and overall technology cooperation in wireless communication application field.