Feature: 1. Back-lit for easy night operation and clear number visibility. 2. Universal fit for most vehicles with a 52mm/2in mounting size. 3. High sensitivity and accuracy for precise current readings. 4. 60-0-60 scale suitable for most applications. 5. Easy to install, durable, and lightweight with a plastic construction. Specification: Condition: Item Type: Ammeter Color: Black Material: Plastic Scale: 60 - 0 - 60 Application: For 12V System Hole Diameter: Approx. 2in Meter OD: Approx. 16in Meter Depth From Front of Panel to the End of the Mounting Studs: 15in / 16in Mounting Size: Approx. 52mm/2in Diameter: Approx. 53mm/2.1in Screen ID: Approx. 43mm/1.7in Screen OD: Approx. 56mm/2.2in Wiring: - Red wire lead for + volt supply to internal lamp; black wire to system ground - Threaded terminal for connecting + volt supply into meter - Threaded terminal for connecting + volt supply out of meter - Used to connect the threaded terminals outside the voltmeter Package List: 1 x Ammeter 1 x Mounting Frame Note: If the white pointer stops working, remove the LED bulb from the rear and gently rotate the white pointer several times with a thin wire, then check functionality.