Open a 3-3/8 dimension and 2-3/4 depth hole, put gauge into it and fasten Speed Ratio: 1-300 adjustable, You can press the back button to adjust it.
ELING Diesel Engine Tachometer Gauge 0-3000RPM with Adjustable Hour Meter RPM Alarm 85mm with Red and Yellow Backlight 9-32V - Yahoo Shopping
Open a 3-3/8 dimension and 2-3/4 depth hole, put gauge into it and fasten Speed Ratio: 1-300 adjustable, You can press the back button to adjust it.
ELING Tachometer Tacho Gauge 3000RPM for Auto Marine Yacht Vehicle with 8 Colors Backlight 85mm 9-32V
ELING Universal Diesel Tachometer RPM REV Counter with Hour Meter 4000RPM 85mm 12V 24V with Backlight : Automotive
ELING Waterproof Car Truck Tachometer REV Counter Vietnam
85MM RPM Tachometer Gauge Waterproof 0-3000 RPM Boat Algeria
Buy Wholesale 85mm rpm tachometer For Various Purposes
ELING Multi-Functional Gauge Meter GPS Speedometer India
ELING Diesel Engine Tachometer Gauge 0-3000RPM with Adjustable Hour Meter RPM Alarm 85mm with Red and Yellow Backlight 9-32V - Yahoo Shopping
ELING Kus 85mm Tachometer Gauge RPM REV Counter with Hour India