Universal 4-in-1 Automotive Tachometer – 5 inch RPM Gauge with Seat Mount (12V) 30L jerry can 1x12mm fitting

1x12mm fitting

and waterproof

the other side fixing on the pipe in car is 34mm in out diameter

This product is designed for use on 12V vehicles

Size: V8 Emblem: 1

Universal 4-in-1 Automotive Tachometer – 5 inch RPM Gauge with Seat Mount (12V) 30L jerry can 1x12mm fittingTake full control of your cars performance metrics with the Unifizz Universal 4 in 1 Tachometer Gauge the ideal all in one dashboard upgrade for performance drivers, tuners, and weekend racers. This 5 inch RPM meter combines sleek styling with precise functionality, offering real time monitoring of engine RPM, water temperature, oil temperature, oil pressure, and water pressure. Designed for universal 12V vehicles, the tachometer is easy to install