The Tachometer with HourMeter (F39040) has an adjustment potentiometer for precise adjustments as well as perimeter lights for comfortable vision at all times of day and night. Also, it includes a fixed rotating speed and monitoring indicator. A Tachometer with HourMeter (F39040) is developed to last a long time and give you trouble-free performance, and the entire body is watertight. This tachometer records engine operating time and measures up to 7,000 rpm. This Tachometer is made from the finest materials to provide a once-in-a-lifetime experience. Key Features: Most Popular Product Affordable high-quality products Easy to set up Two-piece pointer and excellent anti-fogging function. Glass lens with a flat surface Better visibility in low-light settings Hand-polished stainless steel bezel Tachometer display that is waterproof White dial with black graphics and a perimeter light A display that is easy to read Specifications: SKU: F39040 Weight: 0.68 LBS Size: 4 Indicating range:7000 RPM (Gas) (Outboard)