Feature: 1. High Accuracy: Use a stepper motor to drive the pointer, accurately display the current speed, and the drive control is relatively simple. The LCD display clearly shows the mileage. 2. Stepper Motor: Adopting stepper motor, low power consumption, long life and high accuracy. 9‑32V ultra wide long term working voltage, up to 36V (≤1 minute). 3. IP67 Waterproof and Dustproof: 316L stainless steel bezel, corrosion resistant, durable even in acid, alkali and humid environments. Curved glass, good anti fog effect. 4. Stable Connection: There is a snap together with the harness connector, which ensures secure connection, so that the gauge can work normally even under strong vibration. 5. Application: Wide range of applications, fit for 1-8 cylinder gasoline engine and 12V 24V car, truck, boat, diesel generator engine, gasoline engine, etc. Specification: Item Type: Speedometer Material: ABS + 316L Stainless Steel Operation Mode: LCD display, stepping motor Installation Diameter: 85mm/3.3in Working Voltage: 9-32V (12V/24V) Backlight Color: White or amber Indication Range: 0-160MPH Working Temperature: -30℃-+75℃ Storage Temperature: -40℃-+85℃ Protection Level: IP67 Function: Display current speed and total mileage; quick response to stepper motor, settable warning and buzzer, with everything needed for installation Application: Suitable for car, truck, boat, diesel generator engine, gasoline engine. Package List: 1 x Speedometer1 x Power Cord1 x Manual