Using the latest CE 6.0 embedded software environment and Atmel AT91SAM9263 microcontroller with a 32-bit ARM instruction set, Relio R9 has up to 256 MB RAM and 256 MB Flash, and an enclosure suitable for mounting almost anywhere in a -40 to 85 °C operating range. For local or remote I/O expansion, it connects to Sealevel SeaI/O modules via RS-485 expansion port and communicates via RS-485 Modbus RTU.