Stylish white bezel design, black on white graphics, accurate and reliable, these tough instruments look good on all types of boats. Domed glass sheds water and resists scratching.Features: Instruments available for most outboards, stern drives and gasoline-powered inboards.; Scratch-resistant domed glass lenses.; Enhanched Illumination: through-dialand periemeter lighting for excellent readability at night.; Low-range speedometers.; U.S. and metric scales, with ISO symbols, where appropriate.; Optional add-on square bezels for modular appearance.; Specifications: Dial Range: 8-18 VDC; Gauge Description: 12v Voltmeter, 8-18 Volts; Size: 2"; Sender Code: None Required; Current Draw: 0.10 - 0.15 A; Operating Temperature: -40C to +70C; Ingress Protection: IP 65; Bezel O.D.: 2.39; Housing O.D.: 2.08; Hole Size: 2.13;