1、Universal RPM Tachometer: Compatible with various tacho RPM sensors, displaying engine rotation speed accurately, suitable for cars, trucks, boats, derv generators, gasoline engines, construction machinery, and agricultural machinery, etc. 2、Multi Color Backlight Display: Featuring a 7 color backlight, this tachometer is easy to read in any lighting condition while adding a stylish and modern touch to your vehicle or machinery. 3、Anti Vibration Design: The tachometer utilizes the moving magnet principle for outstanding durability and anti vibration, ensuring accurate readings even in wet or harsh environments. 4、Simple Installation: The tachometer need to open an 110 mm (4 3/8 in) hole in the panel and make sure there is a 55 mm space on the back of the panel. Connect the harness connector securely so that the tachometer works properly even under strong vibration. 5、Premium Performance: Engineered for superior precision and reliability, this professionally crafted tachometer delivers unmatched accuracy and performance in every application. Item Type: Boat Tachometer Voltage: DC 9-32V RPM: 8000RPM Fitment: Suitable for Truck Tractor Trailer Car RV Boat 1 x Tachometer 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store