Viewline Ivory 4,000 RPM 3-3/8 85mm Marine Tachometer w/2 Hourmeters, Clock and Voltmeter 12/24V. VDO engineers didn't stop with just a pretty face. Fully sealed dual lens, lifetime LED lighting and warning indicators assure that Viewline can easily withstand even open cab environments. VDO stepper motors and resistive movements ensure accuracy, while testing to 25 G continuous vibration and 100 G shock assure long life reliability. IP67 water resistance means, that no matter how wet it gets, our gauges keep on working. Anti-corrosion materials mean no oxidation or rust will develop Viewline will continue to work and look like new just what you'd expect from a VDO instrument. Features Diameter 3-3/8 . Diameter Metric 85mm. Connection Tyco connector included . Mounting Hardware Spin-Lok. Max Range Outer Scale 4000 RPM. Input Type Analog. Voltage 12-24V VDO engineers didn't stop with just a pretty face. Fully sealed dual lens, lifetime LED lighting and Diameter 3-3/8 . Diameter Metric 85mm Connection Tyco connector included . Mounting Hardware Spin-Lok Max Range Outer Scale 4000 RPM. Input Type Analog Voltage 12-24V