... . It supports RS232, RS485 (or RS422) and ZigBee port that can conveniently and transparently connect one device to a cellular network ... on M2M fields, such as intelligent transportation, smart grid, industrial automation, telemetry, finance, POS, water supply, environment protection, post, weather, and ... )Operating Humidity95% ( unfreezing) F8114 ZigBee+GPRS IP MODEM for Industrial Automation