Gauge Series Features: • Black face gauge with magnified Tinted Lens • Brushed Aluminum Trim Ring • Red illuminated needle • Gauge visor • Mounting and Installation hardware • Instructions • 2 1/6 in gauge or 52 mm in 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.