The Insight Avionics GEM 610 Graphic Engine Monitor presents a clear, concise, graphic picture of all cylinder temperatures simultaneously for interpretation at a glance.  Temperatures recorded are EGT's (exhaust gas temperatures), CHT's (cylinder head temperatures), and OAT (outside air temperature).  The GEM 610 allows precise, accurate mixture leaning, and provides flashing display warnings of deviations from normalized readings, to provide a level of safety prior to emergency engine problems.