The RSM485IDHT with Communication Modules SIP RoHS manufactured by Zhiyuan is a communications module with an integrated interface and RoHS compliant. It offers RS485 as the interface protocol, including four-wire, half-duplex transmission over a twisted-pair cable. Additionally, the RSM485IDHT features a built-in temperature and humidity sensors which support I2C protocol for data gathering. The module also offers 9-pins SIP interface with an operating voltage range of 4.35V to 5.25V and can be used for both floating and non-floating configurations. It's also compatible with a wide range of signal sources, like 220V AC sources and circuit signals. Furthermore, the module is RoHS compliant and has an operating temperature range of -20°C to 70°C.