The Electronics International UBG-16 (Ultimate Bar Graph Engine Analyzer) is a sophisticated avionics engine monitor designed for general aviation aircraft. It features a bar graph display for monitoring up to 16 channels (typically EGT for exhaust gas temperatures and CHT for cylinder head temperatures across multiple cylinders, plus other parameters like TIT or oil temp if configured). It includes advanced diagnostics such as programmable high/low alarms per channel, shock cooling alerts, EGT differential warnings, normalized mode for trend spotting, lean-find assistance, and fuel/air profile views to detect engine issues early—often faster than competitors.

This particular unit is used and was fully functional and working when pulled from an aircraft (as-removed condition from service). It comes from a real-world installation where it performed reliably at removal. Note that condition can vary so verify specifics like included accessories, cylinder count support (commonly 4- or 6-cylinder setups), and any testing upon purchase. It's a proven, fifth-generation analyzer popular for its detailed real-time analysis and pilot-customizable limits.