Endress+Hauser HART Communications Buy Endress+Hauser HART Communications at best prices in Oman and Dubai UAE. Models of Endress+Hauser HART Communications are mentioned below: E+H Field Xpert SMT70 Field Communicator E+H SWA70 WirelessHART Adapter E+H SWG70 WirelessHART Fieldgate E+H Field Xpert SMT77 Field Communicator