Feature: 1. Reliable Material: This 85mm 8000RPM engine tachometer adopts stainless steel bezel, anti fog glass material, longer service life in acid base and humid environment. 2. 0 to 8000RPM: This tachometer gauge drives the pointer with stepping motor, accurately display the engine RPM from 0 to 8000RPM and cumulative hours of engine from 0.0 to 99999.9H. 3. Red Backlit: This pointer tachometer features 3 in 1 design, which can display RPM, water temperature and oil pressure. Designed with red backlit is suitable for night driving. 4. Wide Application: This RPM tachometer is suitable for RV, yacht, fishing boat, ship, motorcycle, car modification and other fields and so on. 5. DC 9 to 32V: This automotive tachometer with black dial adopts wide operating voltage, DC 9 to 32V. Specification: Item Type: Engine Tachometer Material: Stainless Steel Bezel, Anti Fog Glass, PC Color: Black Dial Tachometer Display Range: 0 to 8000RPM Cumulative Engine Hours: 0.0 to 99999.9H Backlit Color: Red Operating Voltage: DC 9 to 32V Installation Size: Approx. 85mm / 3.35in ( Manual Measurement, Slight Error May Exist ) Function Display: Water Temperature, Oil Pressure, RPM Application: RV, Yacht, Fishing Boat, Ship, Motorcycle, Car Modification and Other Fields. Package List: 1 x Engine Tachometer1 x User Manual