Features: Product size: 61.5X33.5X13.5 mm/2.42X1.32X0.53inches. 10-100V wide voltage input, reverse connection for protection. One-piece display port, anti-puncture sunscreen, soft button feels good experience. Custom battery type, suitable for lead acid, lithium battery, lifepo4, nickel hydrogen battery. Display percentage remaining power, voltage, temperature value (degrees Celsius, Fahrenheit can be set). Specifications: Material: Plastic Size: 61.36x13.5x33.36mm/2.42x0.53x1.31in Voltgae input: 10-100V Note: 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. Package includes: 1X Battery Capacity Indicator