The WMB27-169 RF transceiver is a high performance surface-mounted module with embedded Wireless M-Bus protocol. The module operates in 10 channels in the 169 MHz frequency band with output power of up to 27dBm. The WMB27-169 comprises N operating modes to meet the requirements of one-way and two-way data communication in stationary and mobile terminal. The module is connected to a host system via an UART interface for communication and configuration. This Wireless M-Bus module from Friendcom is an ideal embedded RF solution for gas, water, heat, electricity meters and concentrators.