SDGW5X equipped with the advanced microprocessor and unique EchoDiscovery echo processing technology can be used in severe ambience. SDGW5X with extremely low emission power, can be mounted on various metal or nonmetal vessels, harmless towards the environment and human beings. There are multiple options available in choosing various process connection and detecting component, which enables SDGW5X to be applied in a broad extent of applications, such as high temperature, high pressure, medium with small dielectric constant and etc.