Sierra 3" Arctic 4K tachometer. With a stylish white bezel design, this accurate, reliable instrument will look great on any type of boat. Black on white graphics, enhanced with through-dial and perimeter lighting for easy readability, even at night. Tough domed glass sheds water and resists scratching. Sierra Part #68373P.• Dial Range: 0-4000 RPM• Sender Code: Alternator• 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" Stylish white bezel design Thru-dial and perimeter lighting | 3" Arctic Tachometer in White