Established in the year of 2006, Shenzhen Bailing Technology Co., Ltd is one of the leading manufacturers dedicated in telecommunication and security industry. We are specialized in manufacturing GSM wireless products like modem, modem pool, alarm system data monitors and long-range supervision systems for families, electric power, mobile base stations, transportation, petrolum finances, civil and police stations etc. What's more, we highly appreciate OEM /ODM business. We have a professional R&D team to help you with your multiple products requirement. Can according to your specific needs to design the best solution project for your market expansion Bailing adheres to the principle of Good quality, best service, customer satisfaction as our persuit.

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.