52mm Tachometer Sensor Hour Meter 3K-8K RPM Waterproof Hourmeter Gauge Lcd Display With Red Backlight For Marine Car Boat YachtFeatures:- IP67 waterproof and dustproof grade. - Be suitable for all kinds of tacho RPM sensors, and display the rotation speed of the engine. - Use moving-magnet principle to drive the needle, featuring good endurance and anti-vibration. - With ultra-wide working voltage design( long-term operating voltage: 9-32V, Maximum up to: 36V ( 1 min)). - Stepper motors used for full range of stepping gauges, great feature with its less power consumption, longer life, higher precision, etc.Package Included:(as the picture shows)1x Tachometer 1x Multi-plug socket 1x Installation Instruction ( Note: Tachometer do not contain sensor,if you need the sensor , please buy it together )