For over 30 years, Houston Digital Instruments (“HDI”) continues to be a world leader in providing battery-operated, intrinsically safe, certified Gauge Systems. In addition to these field-proven, stand-alone Gauge Systems, HDI also provides complete Choke Consoles and Mud Gas Separator Monitoring Systems, which integrate a series of Gauge Systems for the individual rig’s needs. HDI remains a leader in measurement, gauges, and well control technology and continues to expand its current line of accurate, reliable products to ensure safety and exceed all current regulatory conditions.