Allentare White/Grey Trim Gauge - For Use w/Mercury/Volvo/Yamaha 2001+ Engines - 12VAllentare marine gauges provide an ideal, cost effective solution for new boats or drop-in replacement gauge for older boats. Allentare gauges are designed to work with most commonly found marine senders and wiring harnesses used today.Features:Connection: M4 StudInput Type: AnalogMounting Hardware: IncludedDiameter: 2-1/16"Diameter (Metric): 52mmVoltage: 12VMax Range Outer Scale: Up