Sierras Heavy-Duty Series Instruments feature white graphics on deep black faces and look great on bigger boats. This Heavy-Duty Series Tachometer Gauge is designed to work on gas inboards. Gauge features a deep-set black dial gauge, white letters with white tick marks, and a vivid white pointer for easy readability during the day. Scratch-resistant glass lenses feature low-profile bezels in polished stainless steel and the silicone-damped pointers provide a smooth sweep while being easy reading in rough water. Key Features Perimeter and thru-dial lighting for night readability Dial range is 0-6000rpm Gauge size is 3” Rugged black nylon housing with 3 3/8” dia. Reverse polarity protection Silicone-damped pointers provide a smooth sweep Sender required (sold separately) For more information regarding this instrument and the complete range of the Heavy-Duty Series Instruments, please refer to the Heavy-Duty Series Instrument Overview.