The Ingersoll Rand XE-50 microprocessor controller was most commonly used on the R4 to R11 rotary screw compressors. The controller consists of the membrane and the LCD display. The membrane consists of three command keys (Start, Stop and Reset), two navigation keys (Up and Down), and an Edit mode selection key (Enter). These keys, in conjunction with the graphics display, make up the user interface to the compressor.
This is an OEM controller from Ingersoll Rand. Once installed you will need to program the PSI setpoints for your air compressor.