100% New & High QualityThis voltage meter will give you a real time voltage reading from your batteries. You will never have to risk being stranded from your batteries going dead.Display Color: BlueDimensions: 1.6″ x 1″ x 0.79″Refresh Rate: 0.5 SecondDesign: Waterproof, Dust-proof, Shock-proofVoltage Range: Up to 48V Installation:This is an extremely easy process with its 2 wire setup. We provide general installation instructions to guide you through the installation process. Package Contents:1x 48V Blue digital volt meter