Measuring 3.75 in. square, XL OCS Model HE-XE102, 203, and 204 are all-in-one controllers with sunlight-readable, touchscreen graphics display used for process visualization and machine control. Products support MicroSD memory modules and have built-in I/O with removable terminal blocks as well as 2 serial ports with downloadable protocol. For water treatment, packaging, and agriculture industries, all models integrate controller, operator interface, networking, and I/O.