Cigarette Lighter Adapter : Simply plug into your car's cigarette lighter for instant battery voltage readings. An indispensable tool for any vehicle. Easy Installation : Hassle-free setup process means you can start monitoring your battery's condition right away. No complicated wiring necessary. Red Led Digital Display : High visibility ensures you can read your battery voltage easily, day or night. Essential for keeping your vehicle in top shape. Universal Compatibility : Suitable for virtually any vehicle with a 12v-24v battery system. A versatile solution for car, truck, suv, rv, van, and motorcycle owners. Real-time Monitoring : Continuously monitor your vehicle's battery health. Early detection of issues can prevent unexpected breakdowns. Navigating through the bustling city or exploring the open road, trust our cigarette lighter adapter to keep you informed about your vehicle's battery status. Its compact design integrates seamlessly with your car's interior, offering both style and functionality. Designed for the modern driver, this adapter transforms your ordinary cigarette lighter into a smart diagnostic tool.