This RFM219BW-868S2 Module from Hope Microelectronics is a narrow band FM (Frequency Modulation) receiver, capable of receiving various modulations such as FSK, GFSK, GMSK, MSK, and OOK, at the frequency of 868MHz with a sensitivity of -119 dBm. It is an ideal choice for remote telemetry applications, offering low current consumption and a high interference immunity. This part also offers adjustable gain control, RSSI monitoring and a diverse range of sensitivity levels ranging from -119 dBm to -106 dBm to meet different application requirements. It is suitable for UHF, VHF, and industrial applications.