At this level, there's only Sierra Flight Systems EFIS 2000. There isn't a gyro, mechanical or electromechanical dial in the panel it doesn't replace. Archangel's Generation II Touch 'n Go system is another true multipurpose multifunction display with a multiple-digit price tag that' s exceeded only by its massive capabilities. The EFS 1001 gets all of its attitude, heading, air data and engine information from its own dedicated sensors. Engine analyzers are available from EI that scan and monitor all cylinders' head and exhaust-gas temperatures and trigger an alarm when any parameter breaks a preset limit.
Prices vary according to function or combination of functions, starting at a few hundred dollars.
A vertical stack of six instruments, for example, can be packaged into a single unit that's five inches wide and 7.5 inches high. EI recently introduced the Ultimate Bar Graph Engine Analyzer model UBG-16, which is able to accurately monitor EGT, CHT, TIT and almost any temperature. The UBG-16 is also capable of monitoring RPM, oil pressure, fuel pressure, manifold pressure, bus voltage, amps and gyro vacuum. All programming is done on the front panel and EI claims that it offers the most sophisticated leaning feature in the general-aviation market. JP Instruments is another familiar dial face in the aftermarket engine-monitor crowd with its EDM 700 system.