Sierra 63478P Sterling Series 2" VoltmeterIdeal for outboards and stern drives! With stainless steel bezels, brushed aluminum dials and black pointers, Sterling instruments give a bright, gleaming look to any dash. Perimeter lighting provided for night operation.Features: Brushed aluminum dial, black graduations/numerals, black pointer.; Scratch resistant curved glass lenses, with polished stainless steel, near flush bezels.; Perimeter lighting.; 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: Voltmeter-12 Volt; Size: 2"; Sender Code: None Required; Current Draw: 0.10 - 0.15 A; Operating Temperature: -40C to +70C; Ingress Protection: IP65; Bezel O.D.: 2.34; Housing O.D.: 2.08; Hole Size: 2.13;