Sharp white and blue graphics on a black dial background add a sharp, classic style to any dash. A very low-profile bezel follows the curve of the lens to keep water from trapping. Rugged domed glass sheds water and is scratch-resistant. Sierra Part #68399P.• Dial Range: 0-7000 RPM• Sender Code : O/B ALT./COIL• Voltage: 12V DC• Current Draw: 0.10 - 0.15 A• Operating Temperature: -40C to +70C• Ingress Protection: IP65• Bezel O.D.: 3.78"• Housing O.D.: 3.39"• Hole Size: 3.43" Scratch-resistant lens | Eclipse 3" Tachometer in Blue