Features： 1、Pointer is driven by a stepping motor to accurately display the engine speed, and the mileage can be clearly displayed with the LCD display. 2、Has the characteristics of high indication accuracy, stable reliability, and relatively simple driving and control. 3、Made of 316L stainless steel, it can be used for a long time even in acid‑base and humid environments. IP67 water and dust proof rating. With curved glass (with anti‑fog function). 4、Wiring harness connector has a buckle, and the connection is firm, so that the instrument can work even under strong vibration. 5、Can be used for engine, generator sets, ships, construction machinery, agricultural machinery, automobile modification, etc. Specification： Item Type: Speedometer Material: 316L stainless steel, plastic Diameter: Approx. 85mm/3.3in Features: 1. Can be wired up to light up white or amber 2. Fast respond stepper motor 3. Front button or black button LCD: ODO and trip /Hourmeter and sub-total Application: Suitable for 12V/24V automobile, truck and ship motors Calibration: Set by running approx. 1km/1093.6yd(Mile) Package List： 1 x Speedometer 1 x Connection wire 1 x Description