iWSN-2200-E is an iWSN wireless data contractor, it supports one 433MHz wireless communication interface and one Ethernet communication interface. The module supports Modbus TCP protocol slave, the main function can receive and buffer 31 iWSN sensor’s data by wireless, and the user can transmit Modbus TCP commands to read the sensor’s data by Ethernet interface. In wireless interface, the module supports 16 wireless channels and 8 groups ID by rotary switch setting, the user can easy to use the them to divide and manage the wireless network of 433MHz frequency.