Feature:1. Specification: 85mm tachometer comes with 04000RPM measurement range, LCD display, a black dial, silver 316L stainless steel bezel, high transparent lens and luminous red pointer.2. Accurate Display: Adopt stepper motor drive pointer, precisely display the engine speed with high indication accuracy and relatively simple driving and control.3. High Performance: IP67 waterproof and dustproof, corrosion resistant, durable to use even in acid, alkali and humid environments, and the curved glass features good antifog effect.4. Low Power Consumption: 932V ultrawide longterm working voltage, and maximum up to 36V (1 minute). Come with the harness connector to achieve better and secure connection, so as to work normally even under strong vibration.5. Wide Application: For generator sets, ships, construction machinery, agricultural machinery, automobile modification, etc. and for 12/24V Car, Truck, Boat, Diesel Generator Engine, 18 Cylinder Gasoline Engine.Specification:Item Type: TachometerMaterial: ABSInstallation Diameter: Approx. 85mm/3.35inIndication Range: 0-4000 RPMBacklight Color: White or amberFunction: Current speed/speed and hour; quick response stepper motor, settable warning and buzzer, with everything needed for installationOperation Mode: LCD display, stepping motorWorking Temperature: -30 to +75Storage Temperature: -40 to +85Protection Level: IP67LCD: ODO and trip/hour meter and subtotalApplication: For car, truck, boat, diesel generator engine, gasoline engine.Package List:1 x Tachometer1 x Power Cord1 x Manual