Car Universal LCD 50-9999RPM Tachometer Digital Engine Tach Gauge Boat TruckUsed to measure the RPM of automobile engine.Reads 50~9999RPM.LCD Color Screen with sun visor,high-definition,clear display.Accurate gauge,gets signal from w terminal of the alternator.High sensitivity and easy operation,including user manual.Default cylinder setting:2,3,4,5,6,8Universal,Works on all makes and models.Display:LCD Color ScreenWorking Voltage:DC 9-36VGauge Type:RPM GaugeMeasurement Range:50 to 9999RPMFrequency:20-20khzOperating temperature:0 to 50CSize:About 50x100x75mmSignal Input:Gets signal from w terminal of the alternator;Connecting speed sensor.Fitments:Suitable for all cars,trailers,ships,excavators,construction vehicles,forklifts,etc.Colour:Blackmaterial:plasticPackage Contents:1* Tachometer1* 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.