The Emerson 475HP1ENAUGM9S 475 Field Communicator, Hart Application, Power Supply, Easy Upgrade Option, Protective Rubber Boot with Stand is a built-for-purpose handheld communicator delivering universal support for HART devices, a full-color graphical user interface, and a long-lasting 40-hour Lithium-Ion power module. It is designed to withstand the knocks and shocks from normal use in the field. The weight of the 475HP1ENAUGM9S is evenly distributed for comfortable one-handed operation. It runs on Windows CE, a robust, real-time operating system. The 475HP1ENAUGM9S has 32 MB of application memory and 1 GB of memory on its System Card, along with an 80 MHz Hitachi SH3 microprocessor.