UNIVERSAL COMPATIBILITY: Designed for a wide range of gasoline engines. this 52mm (2-1/16inch) tachometer accommodates 2. 3. 4. 5. 6. and 8 cylinder configurations. Cylinder settings can be easily adjusted from the back of the gauge to match your engine specifications ADVANCED DESIGN FEATURES: 270-degree dial sweep delivers precise readings. and the black faceplate. red needle. and bright white LED backlighting enhance visibility. The gauge features a stainless steel bezel with a convex clear lens and rugged plastic housing MOUNT AND SIZE: The tachometer fits into a standard 2-1/16inch (52mm) dashboard opening and requires a 12-volt negative ground system DURABILITY: Built to withstand harsh conditions. this tachometer is waterproof and perfect for use on cars. boats. and yachts BEST FEATURES: Designed for performance as well . this tachometer enhances the functionality and appearance of your vehicle's dashboard. Its stylish design and reliable performance a must-have tool for monitoring engine speed Product Name: RPM Meter Application: Tachometer is suitable for any 2/3/4/5/6/8 cylinder gas engine Universally applicable to most cars or motors Colour:Black Material:plastic Package Contents: 1 x Electrical Tachometer Only the above package content. other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.