The Banner QDE-815D is a low-cost, single-input, dual-output, digital display controller with four-digit decimal readouts. It features six-digit resolution, a brightness control, plus special display options. It is typically used to display the current values of temperature, pressure, flow, weight, and position. The display can also be configured to indicate any other analog input in engineering units. It provides a highly visible and versatile display solution, but is simple to install and economical.