Sierra Amega 3" speedometer. Smart white and red graphics on a black dial background add a sharp, classic style to any dash. These very low profile bezels follow the curve of the lens to eliminate water trapping. Scratch-resistant domed glass lenses shed water. Through-dial and perimeter lighting provides excellent readability at night. Sierra Part #57898P.• Dial Range: 10-50 MPH• Voltage: 12V DC• Current Draw: 0.10 - 0.15 A• Operating Temperature: -40C to +70C• Ingress Protection: IP 65• Bezel O.D.: 3.78• Housing O.D.: 3.39• Hole Size: 3.43 | Amega 3" Speedometer, Part #57898P in Red