Features: The digital voltmeter offers precise voltage measurements from 4v to 100v, ensuring your devices operate safely and efficiently. Featuring a three digit LED display in redness, blue, and green, this voltmeter is easy to read even in low light conditions, with reverse polarity protective for added safety. For electronics enthusiasts and professional technicians, this tool provide reliable voltage readings for DIYer projects and repair tasks. Perfect for use in automobiles, motorcycles, trucks, boats, and industrial equipment, it help monitors battery voltage and other electrical systems effortlessly. With its simple two wire designx and compacts size, the voltmeter is a essential addition to any toolkit, offering quick installation and dependable performances. Specifications: Component:ABS Size:Approx.30x25x18mm/1.18x0.98x0.7inch Cable Length:Approx.200mm/7.87inch Package Includes: 6Pieces LED Voltage Displays note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.