The RFM12B-433DP is a sub 1GHz radio module produced by Hope Microelectronics. It is a low power, low cost, and high performance RF transceiver module with wide frequency range of 300-940MHz. The RFM12B-433DP supports a variety of communication protocols and data rates of up to 20kbps with a long-range of up to 1km. It is suitable for short-distance wireless data communication, data loggers, remote sensors, industrial control and many more applications. The RFM12B-433DP Package size is 20.5mm*19.5mm and the PCB is compliant with the FCC, CE, and IC standards. The RFM12B-433DP has an integrated Sub-GHz transceiver, amplifier-mixer-oscillator, power amplifier,filter, and technical components. The RFM12B-433DP has an adjustable output power ranging from -22dBm to +10dBm, it can support FSK, GFSK, MSK and GMSK modulation, and it has high modulation accuracy, low current consumption, and superior RF performance. The RFM12B-433DP also has an integrated on-chip temperature sensor and hardware support for external 1-Wire bus protocol. Thanks to the small size, exceptional performance and low power, the RFM12B-433DP module is an ideal choice for short-distance wireless applications.