Double Buttons Design: The GY-6D Battery Capacity Monitor features an intuitive double button design, allowing for quick and efficient setup. You can configure the device in just a few seconds, making it incredibly user-friendly and convenient for all users. Energy-Saving Switch: This monitor is equipped with a practical switch that allows you to turn off the display when not in use, ensuring no unnecessary power consumption. This feature helps conserve battery life, making it an eco-friendly choice for monitoring your battery's status. Accurate Battery Monitoring: With the ability to precisely display both the percentage of battery capacity and voltage, this device provides an intuitive understanding of your battery's condition. Stay informed and manage your power needs effectively with real-time data. Smart Alarm System: To prevent unexpected power loss, the monitor includes a backlight that flashes to alert you when the battery level drops below 20%. This sound-light alarm ensures you are always aware of your battery's condition, allowing you to take timely action. Durable and Reliable: Crafted with high specification standards, the GY-6D monitor is built to last. Its sturdy construction ensures reliable performance, making it a dependable choice for monitoring battery capacity across a wide range of applications.