HM-TRLR-S-868 is a type of RF module designed by Hope Microelectronics. It is a Sub-GHz 868/915MHz Radio Transceiver Module with high-performance integrated RF circuits, RF transceiver, and a modem engine. It features low power consumption, various communication modes, and a wide frequency range. The module can provide up to +13dBm output power, a high receiver sensitivity (up to -129dBm), and low-noise characterization. It is well suited for various applications in the industrial, automotive, telemetry and medical domains, such as asset tracking, temperature and data logging, and smart metering.