The RFM12B-868S2P module from Hope Microelectronics is a miniaturized low-power 433/868 MHz transceiver with an integrated microcontroller for the design of low-cost wireless personal area networks. The RFM12B-868S2P is designed for use in applications including industrial, home automation, automotive, wireless metering and wireless sensor networks. It offers excellent performance, as well as great expense savings. The module offers a range of 5 to 15 km transmission range, an operating temperature range of -40°C to +85°C, a data rate of up to 259.2 Kbps, over 100 mA of current consumption, a receive sensitivity of -119 dBm and a transmit power of up to +13dBm. With its integrated radio interface, the module is a cost-effective solution for low-data rate applications.