Eling ELING Tachometer Tacho Gauge 6000RPM for Auto Marine Yacht Vehicle with 8 Colors Backlight 85mm 9-32V

description About this item 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 8 Colors Backlight: Red, Green, Blue, White , Yellow, Grass, Orange, Purple, Automatic 9-32VDC(12VDC/24VDC) Working Voltage, 100% Waterproof and anti-fogging protection See more product details