These 7,000 RPM tachometers (4" diameter) have a chrome bezel, are back-lit for easy viewing at night/dusk. Features a domed lens to minimize glare in direct sunlight and a fog and scratch resistant coating. "MFS40/50/60A & MD25B2 JET" tachometer includes 3 warning lights (oil, temperature, battery). "MFS 4-Stroke(models shown in the chart below) 2-stroke Auto Mixing Oil Model" tachometer includes low oil warning light. "BFT" tachometer Includes a built-in digital Hour Meter to automatically track engine hours. A great feature to make it easy to keep up with maintenance intervals.