Waterproof vehicle and boat tachometer instrument 3000, 4000, 6000, 7000, 8000 RPM marine tachometer with hour meter 85mm tachometer dial Specifications: - Installation diameter: 85mm- Display range: 3000RPM/4000RPM/ 6000RPM7000RPM/8000RPM- Voltage: 12V / 24V- Working current: 100 MA- Speed ratio: 1~300 adjustable- Function: Current tachometer/RPM and hour- Operating mode: LCD display, stepper motor- Tachometer applicable For cars/trucks/boats/diesel generator engines/gasoline engines Package includes: 1 piece tachometer 1 piece flexible flat cable 1 piece rubber plug 1 manual Features: - 316L Stainless Steel , can be used for a long time and can work normally even in acid, alkali and humid environments. - IP67 waterproof and dustproof rating. - High temperature resistance, chemical resistance and oil resistance. - Using curved glass (with anti-fog function). - High transparency curved PC forms a double anti-fog structure with curved glass, and its anti-fog performance is much higher than that of single-layer glass coated with anti-fog agent. - High brightness LED backlight, high brightness and long life. - The instrument has its own alarm signal, no additional alarm signal is required from the sensor. 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.