Features: High precision; Reverse ion protection. OOTDTY 0.28inch digital LED display, convenient to read data. Power supply: DC 3.50-30.0V, range: DC3.50-30.0V.Sealed plastic waterproof shell with special design, durable and convenient. Suitable for Electromobile, Motorcycle, Car, etc. Specification: Material: plasticLength: approx 4cm/1.6inPower supply: DC 3.50-30.0VMeasuring range: DC3.50-30.0VDisplay: 3 digits 0.28-inchColor: red/yellow/green/blue/whitePackage Includes: 1x Digital Voltmeternote: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.