Four-Faith Provide 2.5/3G/4G Cellular IP Modem with RS232 RS485 RS422 and so on.
Four-Faith Provide Industrial Cellular Router WIFI 3G 4G VPN with sim slot
NB-IoT terminal advance in low power consumption, wide coverage, low cost and large capacity, widely used in a variety of vertical industries.
ZigBee adopts high-powered industrial ZigBee solution and embedded real time operating system.
