Keep a close eye on your boat's engine performance level with the SeaStar Solutions Eclipse Tachometer. It is very easy to read with smart white and blue graphics on a black dial background. This tachometer has a low-profile bezel that follows the curve of the lens, virtually eliminating water trapping and making the device ideal for marine use. It has a full range of readings, including U.S., metric and ISO symbols, a dial range of up to 7,000 RPM and an O/B ALT./COIL sender code. This marine tachometer also features a scratch-resistant domed glass lens, perimeter lighting for night viewing.