Universal Speedometer 12V/24V Odometer 85mm 0-4000RPM LCD Hourmeter Tachometer Backlight for Marine

Open a 3-3\/8 inch dimension and 2-3\/4 inch depth hole, put gauge into it and fastenUsing stepper motor drive pointer, accurate display of the engine speed, and with the LCD display clear display mileage.It takes about to get signal in the first time, but less than 3 seconds after that. It gets quicker under a clear view of the . Sometimes if signal is missing, pls. reconnect all wires and restart it.Tachometer fit for Car \/Truck\/ Boat \/crude oil Generator Engine \/Gasoline EngineSpeedometer Less power consumption, longer life, higher precision,quick location confirmation, short start up timeSpeedometer:0-4000 RPMVoltage: 12V\/24VSize: 85 (mm)Applicable models: Colour:blackMaterial:stainless steelPackage Contents:1 * Speedometer1 * Multi-plug socket1 * Chinese and English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.