ELING Engine Tachometer 7000 RPM Gauge REV Counter with Hour Meter for Car Boat 85mm 12V 24V with Backlight
Open a 3-3/8" dimension and 2-3/4" depth hole, put gauge into it and fasten
Speed Ratio: 1-300 adjustable, You can press the back button to adjust it. Idle speed is typically 600-800rpm. Details refer to owner manual.
Suitable for diesel engine and gasoline engine. Tachometer can get signal from engine, ignition coil, crankshaft sensor, or tacho sensor (be sold separately), etc..If you need tacho sensor, pls. search for ASIN NO. B07RN3HJ72 or B07RR8NQ45
It shows rpm and hour. Hourmeter cannot be reset. If you need other faceplate , pls. search for ASIN B07P5HNR6P or B07P52WVHC.
Red Backlight, 9-32VDC(12VDC/24VDC) Working Voltage, 100% Waterproof and anti-fogging protection