... 868 MHz (Europe)The Applications of Zigbee Wireless Sensor Network( WSN)wireless automatic meter reading system of water, gas, ... Internodes Barrier Free: 100 meters(328feet)Wireless Frequency2.4G ISM License-free Frequency BandChannel ... Ceramics AntennaNetwork StructureStar Topology Network, Cluster Tree Network, Chain Network , Mesh NetworkNetwork ID255 Network ID Can Be SpecifiedNode TypeCenter ...