Sierra 63481P Sterling Series 2" Water Pressure GaugeIdeal 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: 0-30 PSI; Size: 2"; Water Pressure Kits (Outboard): Kit includes fittings/20 feet of tubing; Sender Code: Includes ''WP''; Note: Adapter (P/N 61886P) is required for Yamaha; Voltage: 12 VDC; 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;