Viewline Onyx 150A Ammeter 12/24V Requires External 60mv Shunt. 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 2-1/16 . Diameter Metric 52mm. Connection Tyco connector included . Mounting Hardware Spin-Lok. 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 2-1/16 . Diameter Metric 52mm Connection Tyco connector included . Mounting Hardware Spin-Lok Input Type Analog. Voltage 12-24V