Traditional incandescent lighting illuminates around the perimeter of the dial

In Most Overheating Situations, The First Engine Component To Suffer Damage Is Your Cylinder Heads. Prevent Damage To Your Engine And Ensure Maximum Performance And Reliability With This Autometer Electronic Cylinder Head Temperature Gauge. Highly Accurate And Durable Thanks To Autometers Patented Air Core Meter Movement, A Single Wire, 1/8" Npt Temperature Sender Is Included.