The RFM43B-868S2 is a low power, highly integrated radio frequency transceiver designed for ISM 868MHz/915MHz frequency bands. It features an ultra-low power consumption(down to 0.05mW in sleep mode), 300bps rate, 48-channel frequency hopping, PLL synthesizer and power amplifier circuit on a single chip. It is used in applications such as home automation, alarm systems, industrial automation, security systems, and healthcare. It offers excellent RF performance with high power output and sensitivity up to -120dBm. The RFM43B-868S2 also has a built-in DC-DC converter with energy-saving features and a thermal shutdown function. It offers reliable communication and superior performance, with low cost and high integration.