Astra Depot Waterproof DC 12V Power Outlet Digital LED Voltmeter Charger Socket + Connecting Wire For Boat Marine Carvans Auto Car Motorbike Boat ATV UTV Camper Travel Trailer Package includes: 1x LED DC Voltmeter + Set of Connecting Wires with built-in fuse Size: Diameter:1.44 Material: High Quality ABS Socket Body The meter draws nominally 10 mA and the range is 0-35V DC. Universal fits for 12V Vehicle, Motorcycle, ATV, Boat, Car or Marine.