Zepsen Enterprises repairs Industrial HMI, sometimes referred to as monitors, human machine interface (HMI) or operator panels. Whether CRT or LCD, touch screen or non-touch screen. Our technicians can retrofit your older CRT screen with a new LCD, adding years of life and service to existing equipment, which saves you real money. More Control will try to fix your HMI first, however, if parts are no longer available, we have the technical knowledge to select and integrate a suitable replacement HMI into your existing system.