Gauge Series Features: Black face gauge with magnified clear lens Black trim ring with black housing Red illuminated needle with full sweep Electronic Gauges has Opening Sweep Movement 7 color LED illumination number glow and color recall technology (Gauge will return to previous color when vehicle is turned off) Fast and slow automatic color changing modes Gauge visor Mounting and Installation hardware Instructions 2 1/16th inch gauge or 52 mm diameter Volt Gauge Includes: All mounting hardware Detailed Installation Instructions Gauge Visor Reads: 8 to 18 Volts Electrical Gauge Free Tech Support 12 month limited warranty This Volt Gauge measures the output voltage of your vehicle’s electrical system (8-16 volts) and it accurately measures the amount of power that the alternator is putting out. This is perfect for vehicles having more than normal amounts of battery power due to different parts of the car including: TVs, amps, speakers, and gaming units. Important Note: This item is not vehicle specific. It is compatible with a wide range of applications and is therefore displayed on our site regardless of your vehicle selection. Please review the specifications and verify compatibility prior to placing your order.